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Fractal model of solid-liquid two-phase thermal transport characteristics in the rough fracture network J. Porous Media (IF 2.3) Pub Date : 2024-03-01 shanshan yang, Qiong Sheng, Mingqing Zou, Mengying Wang, Ruike Cui, Shuaiyin Chen, Qian Zheng
To discuss the influencing factors of thermal transport features in coarse fracture networks, the heat transfer analysis model of solid-liquid two-phase flow in a rough fracture network is created in this text. By calculating the thermal resistance and thermal conductivity of rough cracks, it was found that the thermal transport capacity of cracks is inversely proportional to relative roughness and
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Application of Artificial Neural Network for Modeling of Motile Microorganism-Enhanced MHD Tangent Hyperbolic Nanofluid across a vertical Slender Stretching Surface J. Porous Media (IF 2.3) Pub Date : 2024-03-01 Bilal Ali, Shengjun Liu, Hongjuan Liu
The Levenberg-Marquardt back propagation artificial neural networks (LM-BP-ANNs) procedure is used in this analysis to show the computational strategy of neural networks for the simulation of MHD Tangent hyperbolic nanofluid (THNF). The THNF flow comprised of motile microorganism has been considered across a vertical slender stretching surface. The fluid flow has been examined under the significance
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Effect of Microstructures on Mass Transfer inside a Hierarchically-structured Porous Catalyst J. Porous Media (IF 2.3) Pub Date : 2024-03-01 Masood Moghaddam, Abbas Abbassi, Jafar Ghazanfarian
In this paper, the pore network model to investigate the reaction-diffusion process in the hierarchically structured porous catalyst particle is extended to consider the phenomenon of deactivation by coking. In this framework, the interaction of internal particle pore structure and mass transfer under the condition of coke deposition are examined. Then, the effect of structural features namely macroporosity
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Insight into the impact of melting heat transfer and MHD on stagnation point flow of tangent hyperbolic fluid over a porous rotating disk J. Porous Media (IF 2.3) Pub Date : 2024-03-01 Priya Bartwal, Himanshu Upreti, Alok Kumar Pandey
Melting heat transfer plays a crucial role in many industrial devices including heat exchangers, air-conditioning, and metal casting. Considering these uses, the heat transmission in three-dimensional tangent hyperbolic fluid flow is evaluated. The effects of magnetohydrodynamics, Ohmic heating, porous medium, and melting heat transfer at the boundary are applied to the stretching rotating disk. The
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Numerical Simulation of 3D Darcy-Forchheimer Hybrid Nanofluid Flow with Heat Source/Sink and Partial Slip Effect across a Spinning Disc J. Porous Media (IF 2.3) Pub Date : 2024-03-01 Bilal Ali, Sidra Jubair, Md Irfanul Haque Siddiqui
The current study explains the numerical simulation for the Darcy-Forchheimer (DF) hybrid nanofluid (HNF) flow over a permeable rotating disc. The HNF is prepared with the addition of AA7072 and AA7075 (aluminum alloys) nanoparticles (NPs) in water. Aluminum alloys are frequently used in aircraft parts like fuselages and wing flaps due to its light weight and durability. Additionally, making of M16
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Estimating the Spreading Rates of Hazardous Materials on Unmodified Cellulose Filter Paper: Implications on Risk Assessment of Transporting Hazardous Materials J. Porous Media (IF 2.3) Pub Date : 2024-02-01 Heshani Manaweera Wickramage, Pan Lu, Peter Oduor, Jianbang Du
The transportation of hazardous materials (HAZMAT) has been challenging over the years due to the inherent environmental and associated health risks. To fully understand the potential environmental impacts of HAZMAT accidents, estimating the potential spread for various HAZMATs is needed for a complete risk assessment. We conducted diffusion tests on porous filter paper for four HAZMAT compounds —methanol
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ELASTIC INTERACTIONS BETWEEN EQUILIBRIUM PORES/HOLES IN POROUS MEDIA UNDER REMOTE STRESS J. Porous Media (IF 2.3) Pub Date : 2024-02-01 Kostas Davanas
Practically all properties of porous media (elastic moduli, thermal conductivity, electrical resistivity, etc.) are subject to potentially significant and non-linear variations w.r.t. the degree of their porosity. This may be due, among other reasons, to the pore-to-pore interactions which stem from the elastic fields arising from the applied stresses. The nature of these interactions is disputed –
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Gravity modulation and its impact on weakly nonlinear bio-thermal convection in a porous layer under rotation: a Ginzburg-Landau model approach J. Porous Media (IF 2.3) Pub Date : 2024-02-01 Michael Kopp, Vladimir Yanovsky
The effect of gravity modulation on weakly nonlinear bio-thermal convection in a porous rotating layer has been investigated in this study. The system under consideration is a porous medium layer saturated with a Newtonian fluid containing gyrotactic microorganisms, and it is subjected to both gravity modulation and rotation. Through a weakly nonlinear analysis, the behavior of the system at finite
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Pore structure and permeability behavior of porous media under in-situ stress and pore pressure: Discrete element method simulation on digital core J. Porous Media (IF 2.3) Pub Date : 2024-02-01 Jun Yao, Chunqi Wang, Xiaoyu Wang, Zhaoqin Huang, Fugui Liu, Quan Xu, Yongfei Yang
In stress-sensitive oil and gas reservoirs, formation rocks’ deformation occurs under in-situ stress and pore pressure, affecting the rock's porosity and permeability. Pore deformation is the fundamental mechanism. However, the literature on the numerical simulation of rock porosity and permeability at the pore scale is rare. In this paper, a numerical simulation framwork of pore scale is proposed
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SUTTERBY NANOFLUID FLOW WITH MICROORGANISMS AROUND A CURVED EXPANDING SURFACE THROUGH A POROUS MEDIUM: THERMAL DIFFUSION AND DIFFUSION THERMO IMPACTS J. Porous Media (IF 2.3) Pub Date : 2024-02-01 galal Moatimid, Mona Mohamed, Khaled Elagamy
This study anticipates examining a slip bio-convective movement of a non-Newtonian Sutterby nano-fluid (SF) layer with motile microorganisms. The fluid layer flows over a curved stretching surface. The movement is taken across a permeable medium and under the influence of thermal diffusion, diffusion thermo, an unchanged vertical magnetic field (MF), Joule heating, thermal radiation, and chemical reactions
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PORE-SCALE STUDIES OF THE EFFECTIVE GAS DIFFUSIVITY IN MICROSCALE POROUS MEDIA BY THE DIRECT SIMULATION MONTE CARLO (DSMC) METHOD J. Porous Media (IF 2.3) Pub Date : 2024-01-01 Chuan-Yong Zhu, Wen-Xin Yang, Bing-Huan Huang, Liang Gong
The diffusion of gases in microscale porous media plays a pivotal role in multiple engineering applications. Accurate prediction of gas diffusivity in these media is crucial for optimizing such processes. In this research, we utilized the direct Monte Carlo simulation (DSMC) to analyze gas diffusion in microscale porous media, reconstructed using the quartet structure generation set (QSGS) method.
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CREEPING FLOW OF COUPLE STRESS FLUID OVER A SPHERICAL FIELD ON A SATURATED BIPOROUS MEDIUM J. Porous Media (IF 2.3) Pub Date : 2024-01-01 Shyamala Sakthivel, Pankaj Shukla, Selvi Ramasamy
This problem emphasizes the dynamic interaction between a biporous medium and a couple stress fluid of laminar flow. The flow around a permeable field engulfed in a couple stress fluid is examined. When examining the motion of an oil droplet in a porous collector that is surrounded by an aqueous medium (oil-in-water emulsion) and is subject to an external pressure drop, this formulation of the problem
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INFLUENCE OF LORENTZ FORCES ON FORCED CONVECTION OF NANOFLUID IN A POROUS ENCLOSURE J. Porous Media (IF 2.3) Pub Date : 2024-01-01 Yi Man, Mostafa Barzegar Gerdroodbary
The evaluation of the nanofluid heat transfer inside the enclosure is done via a theoretical approach. This study illustrates the change of Nusselt number of nanofluid inside the enclosure with porous media in the existence of a homogeny magnetic field. The change of significant factors of the magnetic field, Rayleigh number, and nanofluid characteristics (m) on thermal characteristics has been fully
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Characteristics of Flow Regimes in Spiral Packed Beds Composed of Randomly Spheres J. Porous Media (IF 2.3) Pub Date : 2024-01-01 Mustafa Yasin Gökaslan, Mustafa Özdemir, Lütfullah Kuddusi
Packed beds are used in many fields such as heat exchangers, cooling systems, filtration, and reactors. Porous media increase the heat transfer but increase the pressure drop and flow regimes are different according to the clear channel. The flow regime significantly affects the heat transfer and pumping power of the fluid. It is known that when the channel is either curved or packed separately, the
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Numerical study of the influence of magnetic field and throughflow on the onset of thermo-bio-convection in a Forchheimer‑extended Darcy-Brinkman porous nanofluid layer containing gyrotactic microorganisms J. Porous Media (IF 2.3) Pub Date : 2024-01-01 Arpan Garg, Y.D. Sharma, Subit K. Jain, Sanjalee Maheshwari
This paper accommodates numerical investigation on the onset of magneto-thermo-bioconvection in nanofluid suspension of gyrotactic microbes saturated in a porous medium under the imposition of vertical throughflow and quadratic drag. The modified Darcy-Brinkman-Forchheimer model is utilized to drive the governing equations. The normal mode technique along with linear stability analysis is imposed to
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A NANOFLUID COUPLE STRESS FLOW DUE TO POROUS STRETCHING AND SHRINKING SHEET WITH HEAT TRANSFER J. Porous Media (IF 2.3) Pub Date : 2024-01-01 A. B. Vishalakshi, Ulavathi Shettar Mahabaleshwar, V. Anitha, Dia Zeidan
The analysis of current work portrays the exact solution of couple stress fluid flow with heat transfer. Three varieties of nanoparticles are placed inside the flow to achieve better thermal conductivity. A porous sheet inside the fluid flow is considered to yield new results of the study. With the use of similarity variables, the controlling partial differential equations of the issue are converted
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A ROTATING WAVY CYLINDER ON BIOCONVECTION FLOW OF NANOENCAPSULATED PHASE CHANGE MATERIALS IN A FINNED CIRCULAR CYLINDER: ISPH SIMULATIONS J. Porous Media (IF 2.3) Pub Date : 2024-01-01 Noura Alsedais, Sang-Wook Lee, Abdelraheem M. Aly
The originality of this study is the introduction of numerical investigations on the bioconvection flow of nano-encapsulated phase change materials (NEPCMs) with oxytactic microorganisms in a new configuration of a circular annulus with a rotating wavy inner cylinder. The incompressible smoothed particle hydrodynamics (ISPH) method was applied to solve the governing partial differential equations for
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SUCTION EFFECT ON POROUS SHRINKING CYLINDER IN MHD CASSON FLUID WITH THE IMPACT OF HEAT GENERATION AND RADIATION J. Porous Media (IF 2.3) Pub Date : 2024-01-01 A. Shobha, M. Mageswari, Aisha M. Alqahtani, A. Arulmozhi, Manyala Gangadhar Rao, K. Sudarmozhi, Ilyas Khan
In this research, we are delving into the intricate interplay of Casson fluid flow around a shrinking cylinder while considering the existence of a porous medium. This system is further influenced by magnetohydrodynamics (MHD), radiation, and heat generation. A distinctive aspect of novelty in this investigation involves incorporating a suction effect into the boundary condition. By converting the
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NANOFLUID FILM FALLING ON A NON-DARCY POROUS VERTICAL PLATE EVAPORATOR J. Porous Media (IF 2.3) Pub Date : 2024-01-01 Abdelaziz Nasr
A numerical analysis of the falling nanofilm evaporation on a vertical porous wetted wall by mixed convection was performed. The right-wall was dry and isothermal, while the left wall was embedded in a non-Darcy porous medium filled with nanofilm (water + low fraction volume of copper nanoparticles) and exposed to a uniform heat flux from the outside. The nanofluid film made up the liquid, while dry
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IMPORTANCE OF THERMAL CONDUCTIVITY MODELS IN ANALYZING HEAT TRANSFER OF RADIATIVE HYBRID NANOFLUID ACROSS A STRETCHING SHEET USING DARCY-FORCHHEIMER FLOW J. Porous Media (IF 2.3) Pub Date : 2024-01-01 Zafar Mahmood, Khadija Rafique, Umar Khan, Taseer Muhammad, Ahmed M. Hassan
Hybrid nanofluids' enhanced thermal efficiency has important applications in many fields of industry and engineering. The goal of this study is to find out how different thermal conductivity models affect important factors in the Darcy-Forchheimer flow and heat transfer of a hybrid nanofluid made of Al2O3 − Cu and water across a moving surface that can let some fluid pass through it. Magnetohydrodynamics
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DARCY−BRINKMAN FLOW IN AN ANISOTROPIC ROTATING POROUS CHANNEL UNDER THE INFLUENCE OF MAGNETIC FIELD J. Porous Media (IF 2.3) Pub Date : 2024-01-01 Vineet Kumar Verma, Abdul Faiz Ansari
In the present paper, influence of the magnetic field on a viscous incompressible conducting fluid flow through an anisotropic rotating porous channel is considered. The flow within the porous channel is governed by Brinkman equation. No-slip boundary condition is used on the walls of the channel. Analytical solutions for the primary and secondary velocities are obtained. The influence of various parameters
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CHARACTERIZATION OF PORE STRUCTURE AND DYNAMIC SEEPAGE CHARACTERISTICS OF SANDSTONE DETERMINED BY NUCLEAR MAGNETIC RESONANCE (NMR) AND MAGNETIC RESONANCE IMAGING (MRI) TECHNIQUES J. Porous Media (IF 2.3) Pub Date : 2024-01-01 Na Zhang, Shuaidong Wang, Jiaqi Wu, Zheng Li, Fangfang Zhao
The combination of nuclear magnetic resonance (NMR) and magnetic resonance imaging (MRI) to investigate the seepage characteristics of sedimentary rock has been popular research in recent years. This research assessed dynamic seepage features of sandstone and shale samples through NMR and MRI measurements with two respective fluids of different wettability (i.e., distilled water and kerosene). Results
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LOCAL NON-SIMILAR SOLUTIONS OF MAGNETOHYDRODYNAMIC CASSON NANOFLUID FLOW OVER A NON-LINEAR INCLINED SURFACE WITH THERMAL RADIATION AND HEAT GENERATION EFFECTS: A UTILIZATION OF UP TO THIRD TRUNCATION J. Porous Media (IF 2.3) Pub Date : 2024-01-01 Raheela Razzaq, Saiqa Sagheer, Umer Farooq
The current research aims to investigate the influences of thermal radiation, heat generation, and chemical reaction on the magnetohydrodynamic (MHD) Casson fluid flow model over a non-linear inclined surface. The Buongiorno model of the thermal efficiency of fluid flows in the existence of Brownian motion and thermophoresis features served as the foundation of employed non-similar modeling. The present
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DIGITAL IMAGES ANALYSIS AND QUANTITATIVE STRUCTURE-PERMEABILITY RELATIONSHIPS J. Porous Media (IF 2.3) Pub Date : 2024-01-01 Alejandro Ramirez-Velez, Carolina Rodriguez-Cardona, Estephania Restrepo-Villegas
In this work, multiple linear regression was used to obtain mathematical models with which it is possible to predict the permeability of isotropic porous media. With this aim, a database containing the binary files of the digital images of a wide variety of structures was built. These files allowed: 1) the extraction of statistical and morphological descriptors of the solid and void phases that were
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MULTI-STRATIFIED EFFECTS ON STAGNATION POINT NANOFLUID FLOW WITH GYROTACTIC MICROORGANISMS OVER POROUS MEDIUM J. Porous Media (IF 2.3) Pub Date : 2024-01-01 Ponniah Meena Rajeswari, Poulomi De
The present investigation focuses on the intricate interplay of multiple stratified effects on the stagnation point nanofluid flow with gyrotactic microorganisms across a porous medium. The study encompasses a comprehensive numerical analysis, examining the impacts of varying parameters, such as stratification parameters, porosity, etc., on the flow characteristics. The gyrotactic behavior of microorganisms
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CONVECTIVE STABILITY OF HORIZONTAL FILTRATION FLOW THROUGH A CLOSED DOMAIN OF POROUS MEDIA WITH CLOGGING J. Porous Media (IF 2.3) Pub Date : 2024-01-01 Boris S. Maryshev, Lyudmila S. Klimenko
The present paper is devoted to the study of horizontal filtration flow through a closed porous domain, with the extraction of some impurities from the mixture by immobilizing them. Usually, the filter is damaged after some time of use because of clogging. Here, we generalize the mathematical model for immobilization and clogging. The investigation of the transition of instability modes from monotonic
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DARCY-FORCHHEIMER FLOW OF A CONDUCTING MICROPOLAR FLUID AT A STRETCHING SHEET WITH CONVECTIVE BOUNDARY CONDITIONS J. Porous Media (IF 2.3) Pub Date : 2024-01-01 Ramamoorthy Meenakumari, Gorintla Sucharitha, Pallavarapu Lakshminarayana, Kuppalapalle Vajravelu
In this paper we study the Darcy-Forchheimer flow of a magnetohydrodynamic (MHD) micropolar fluid over a stretching surface with convective boundary conditions. The effects of viscous dissipation, thermal radiation, activation energy, and chemical reaction, along with Dufour and Soret effects, are considered and analyzed. By using a suitable similarity transformation, the governing partial differential
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PERCOLATION CHARACTERISTICS OF POWER-LAW FLUID IN THE FRACTAL TREE-LIKE BIFURCATION NETWORKS WITH ROUGH SURFACES J. Porous Media (IF 2.3) Pub Date : 2024-01-01 Shanshan Yang, Qiong Sheng, Mingchao Liang, Mingqing Zou
In order to study the seepage characteristics of power-law fluids in the fractal tree-like bifurcation networks with rough surfaces based on fractal theory, the shape factor of rough surfaces is treated as the randomly distributed cones. According to the generalized Darcy's law and the constitutive equation of power-law fluids, the fully-developed laminar and incompressible flow of power-law fluids
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THE EFFECT OF COUPLE STRESSES ON STABILITY ANALYSIS OF MAGNETIZED FERROFLUID SATURATING A POROUS MEDIUM HEATED FROM BELOW J. Porous Media (IF 2.3) Pub Date : 2024-01-01 Akanksha Thakur, Sunil, Reeta Devi
This work aims to inspect the impact of couple stress forces on the convective stability of magnetized ferrofluid saturating a porous medium for different combinations of bounding surfaces. Both linear and nonlinear analyses are conducted to obtain eigenvalue problems. Normal mode analysis is used for linear analysis, while the energy method is used for nonlinear analysis, and a generalized energy
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FLUID FLOW THROUGH ISOMERIC CONSTRUCTAL NETWORKS OF TUBES J. Porous Media (IF 2.3) Pub Date : 2024-01-01 Vinicius R. Pepe, Antonio F. Miguel, Flavia S. F. Zinani, Luiz Alberto O. Rocha
The branching topology of tree networks has a considerable influence on the distribution of fluid flow inside them. Fluid flow asymmetry (an unequal distribution of fluid flow between the daughter tubes) can arise in geometrically symmetric branches. It is important to be able to pinpoint the reason for this, which is still not fully understood. This study compares tree flow network designs with the
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Numerical Simulations and Experimental Comparison on Thermal and Fluid Flow Characteristics of Metal Foam Double Tube Heat Exchanger J. Porous Media (IF 2.3) Pub Date : 2024-01-01 Aniket A. Dhavale
The paper presents a numerical investigation using ANSYS Fluent v2021 to study a metal foam heat exchanger integrated into the absorber plate of a double tube heat exchanger for a solar flat plate collector. The goal is to analyze the system’s thermal and fluid flow behavior. Water is employed as the working fluid in the simulations. Three types of metal foam (Nickel, Copper, and Aluminum) with porosities
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A NUMERICAL APPROACH OF FORCED CONVECTIVE MHD CASSON HYBRID NANOFLUID FLOWS EXPOSED TO JOULE HEATING AND VISCOUS DISSIPATION OVER DIVERGING CHANNEL J. Porous Media (IF 2.3) Pub Date : 2024-01-01 K. Gnanaprasanna, Abhishek Kumar Singh
The present study deals with boundary layer flows of buoyancy-driven magnetohydrodynamic, chemical-radiative, and temperature-sensitive Casson hybrid nanofluid over diverging channel. Copper (Cu) and aluminum oxide (Al2O3) nanoparticles are suspended upon ethylene glycol−based non-Newtonian Casson fluid. The proposed model is applicable in power transmission systems the design of nuclear reactors where
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EFFECTS OF POROUS MEDIUM IN MHD FLOW OF MAXWELL FLUID WITH SORET/DUFOUR IMPACTS J. Porous Media (IF 2.3) Pub Date : 2024-01-01 K. Sudarmozhi, D. Iranian, Ilyas Khan, Shaha Al-Otaibi
In the energy transfer field, non-Newtonian fluid flow has an inclusive range of applications in the movement of biological fluids, oceanography, coating energy exchanger technology, melt-spinning, and the cooling of metallic plates and suspensions. Given these applications, this study examines the numerical simulation of hydromagnetic non-Newtonian Maxwell fluid flow on a horizontal plate through
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PERMEABILITY OF PARTIALLY TO FULLY RANDOMIZED ARRAYS OF SQUARE OBSTACLES: A LATTICE BOLTZMANN APPROACH J. Porous Media (IF 2.3) Pub Date : 2024-01-01 Majid Nejadseifi, Mehran Kiani-Oshtorjani, Tero Tynjälä, Payman Jalali
Porous media consisting of monodisperse square obstacles were computationally studied using the lattice Boltzmann method in the Darcy regime. Different random arrays of obstacles were generated from the ordered arrays of obstacles using a new algorithm for controlled randomization. The porosity lies in the dilute to moderately dense range of 0.85−0.69. By proper nondimensionalization of the randomization
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FRACTAL STUDY ON THE INFLUENCE OF SURFACE MORPHOLOGY ON SEEPAGE CHARACTERISTICS IN THE ROUGH FRACTURE NETWORK J. Porous Media (IF 2.3) Pub Date : 2024-01-01 Kaicong Xu, Shanshan Yang, Sheng Zheng, Xueqi Zhang
In the fracture network, the surfaces of fracture are frequently rough. In this article, a binary tree fractal model for curved capillaries has been established based on the fractal theory. The expression of the mass flux rate of the fluid in the rough fracture network has been derived following the Hagar-Poiseuille formula, and the term of the gas mass flux rate has been obtained by using the gas
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IMPACT OF POROUS AND MAGNETIC DISSIPATION ON DISSIPATIVE FLUID FLOW AND HEAT TRANSFER IN THE PRESENCE OF DARCY-BRINKMAN POROUS MEDIUM J. Porous Media (IF 2.3) Pub Date : 2024-01-01 Muhammad Idrees Afridi, Zhi-Min Chen, Nadia Riaz, Muhammad Qasim
In this article, the boundary layer flow of an electrically-conducting fluid through a porous medium attached with a radiative permeable stretching sheet is analyzed. Following the Brinkman theory, an extended Darcy model (Darcy-Brinkman model) is utilized for the model momentum equation. Heat transfer analysis is also performed in the presence of viscous and Joule dissipation. Moreover, in the modeling
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FINITE DIFFERENCE METHOD BASED-NUMERICAL SIMULATIONS AND CAVITY TILTING ANALYSIS ON MAGNETOCONVECTION IN AN INCLINED PARALLELOGRAMMIC POROUS ENCLOSURE J. Porous Media (IF 2.3) Pub Date : 2024-01-01 Mani Sankar, P. Ravindra, Mahesha, Oluwole Daniel Makinde, R. Sivaraj
This article numerically investigates the buoyancy-assisted convective flow and associated thermal characteristics in an inclined parallelogram-shaped porous geometry containing heat source and sink of different lengths placed at various locations. The left tilted wall has a hot source, and right tilted wall contains a cold sink, while the remaining regions of the inclined sidewalls are thermally insulated
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NUMERICAL SIMULATION OF FLOW THROUGH ABSORBING POROUS MEDIA: PART 2. SWELLING POROUS MEDIA J. Porous Media (IF 2.3) Pub Date : 2024-01-01 Shivam Salokhe, Mohammad Rahmati, Ryan Masoodi
In the first part of this two-paper series, published in the Journal of Porous Media in 2021, a novel framework based on the combination of finite volume method and volume of fluid method was proposed to model the flow through absorbing porous media under rigid conditions. The results from the model showed a promising correlation with the experimental and analytical predictions for the wicking height
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COMBINED EFFECT OF LOCAL THERMAL NONEQUILIBRIUM AND GRAVITY MODULATION ON THERMAL INSTABILITY IN MICROPOLAR NANOFLUID SATURATED POROUS MEDIA J. Porous Media (IF 2.3) Pub Date : 2024-01-01 Beer S. Bhadauria, SHILPEE .
In the present paper an effect of gravity modulation in a horizontal parallel flat plate having micropolar nanofluid saturated by a porous medium is examined. Local thermal nonequilibrium (LTNE) has been observed for the problem, i.e., the fluid, particle, and solid matrix are at different temperatures. Onset of convection and heat and mass transfer for both the cases, i.e., linear stability and nonlinear
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FABRICATION OF REALISTIC TRANSPARENT POROUS MEDIA FOR 3D OBSERVATION OF INTERNAL MASS TRANSPORT J. Porous Media (IF 2.3) Pub Date : 2024-01-01 Taiki Gyotoku, Tatsuki Iwaguchi, Shigeto Hanya, Shusaku Harada, Yohsuke Tanaka, Yasufumi Yamamoto
A new experimental system was developed to observe the migration of colloidal particles in saturated porous media in 3D, which is important in engineering processes such as contaminant migration and filtration. The system enables the observation of internal migration that is invisible from the outside by fabricating a porous body using a transparent material and a 3D printer. Non-artificial media with
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THREE-DIMENSIONAL THERMO-HYDRO-MECHANICAL DYNAMIC ANALYSIS OF A HALF-SPACE UNDER FRACTIONAL ORDER THEORY OF THERMOELASTICITY J. Porous Media (IF 2.3) Pub Date : 2024-01-01 Ying Guo, Zhiyuan Fang, Chunbao Xiong, Kuahai Yu
To permit understanding and improvement of subgrade load bearing performance, this paper presents the analysis of a three-dimensional (3D), half-space, elastic subgrade coupling of multi-fields using normal mode analysis (NMA) under Ezzat's fractional order generalized theory of thermoelasticity. Using this method, the analytical equation can be divided into two parts, and the analysis is done with
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THE EFFECT OF THE MEMBRANE THICKNESS ON THE PERFORMANCE OF DIRECT METHANOL FUEL CELL: FACTORIAL DESIGN J. Porous Media (IF 2.3) Pub Date : 2024-01-01 Noun Abdelwahab, Amani Al-Othman, Muhammad Tawalbeh, Mamdouh El Haj Assad, Khalil Khanafer
The direct methanol fuel cell (DMFC) is one of the most promising technologies to achieve high power density at room temperature. Many studies have been conducted to improve its performance by optimizing the operating conditions. The purpose of this work is to investigate the effects of membrane thickness under various pertinent operating conditions on the performance of the DMFC using the two-level
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HIEMENZ STAGNATION POINT FLOW OF A TERNARY NANOFLUID AND HEAT TRANSFER DUE TO POROUS STRETCHING/SHRINKING SHEET WITH BRINKMAN MODEL J. Porous Media (IF 2.3) Pub Date : 2024-01-01 Angadi Basettappa Vishalakshi, Gadabanahalli Puttasiddappa Vanitha, Ulavathi Shettar Mahabaleshwar, Thongchai Botmart, Hakan Fehmi Oztop, Nidal Abu-Hamdeh
The role of the Brinkman model is analyzed in the current work by taking the flow of ternary hybrid nanofluids with heat transfer in the presence of radiation and mass transpiration. The ordinary differential equations (ODEs) are yielded from the partial differential equations (PDEs) by using similarity variables. This flow is used in many real life significances viz., glass blowing, petroleum products
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NUMERICAL DESIGN OF ASYMMETRIC POROUS MATERIALS WITH TARGET PROPERTIES J. Porous Media (IF 2.3) Pub Date : 2024-01-01 Benjamin Paisley, M. Sadegh Riasi, Santosh Konangi, Lilit Yeghiazarian
Numerical tools have become ubiquitous in design of manufactured porous materials. Many methods have been developed for imaging, reconstruction, material property estimation, and generation of materials in a virtual environment with the ultimate goal of understanding the connection between the synthesis process, material microstructure, and material properties. In previous works, we presented a new
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AN ALTERNATIVE PROCESS-BASED APPROACH TO PREDICTING THE RESPONSE OF WATER-SATURATED POROUS MEDIA TO HARMONIC HYDRODYNAMIC LOADS J. Porous Media (IF 2.3) Pub Date : 2024-01-01 Myron van Damme, D. den Ouden-van der Horst
Methods have been developed to predict how hydrodynamic loads acting on nearly saturated porous media are transmitted to the subsoil. In line with the effective stress principle of Terzaghi, these methods apply the boundary conditions that the effective stresses at the surface of a porous medium are zero, and that the pore water pressures carry the full load. Here, a new approach is presented which
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EFFECT OF RADIATION AND INJECTION ON A NEWTONIAN FLUID FLOW DUE TO POROUS SHRINKING SHEET WITH BRINKMAN MODEL J. Porous Media (IF 2.3) Pub Date : 2024-01-01 Thippaiah Maranna, Ulavathi Shettar Mahabaleshwar, Gabriella Vadaszne Bognar, Hakan Fehmi Oztop
This paper is centered on an analytical solution of radiation and injection effects on a Newtonian fluid flow due to a porous shrinking sheet with the Brinkman model. For the momentum equations, the Brinkman model is employed. In addition, the effects of radiation and injection factors on temperature and concentration are considered. Consideration is given to the cross-diffusion relationship between
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VARIATION IN THE SETTLING BEHAVIOR OF PARTICULATE SUSPENSION IN SATURATED GRAVEL LAYERS J. Porous Media (IF 2.3) Pub Date : 2024-01-01 Taiki Gyotoku, Genki Masuda, Kosuke Nishimura, Shusaku Harada, Yohsuke Tanaka, Yasufumi Yamamoto
The gravitational settling of solid particles in saturated porous media, which is common in various engineering processes and natural phenomena, was investigated experimentally. This study examines the settling pattern of fine particles suspended in saturated porous media composed of gravel layers. The experiments were conducted by varying the physical properties of particles and fluid, particle concentration
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DETERMINATION OF THE RELATIONSHIP BETWEEN VOLUME AND DIFFUSION AREAS OF HAZARDOUS MATERIALS ON POROUS MEDIA J. Porous Media (IF 2.3) Pub Date : 2024-01-01 Heshani Manaweera Wickramage, Pan Lu, Peter G. Oduor, Jianbang Du, J.
One of the focused areas that transportation industry has to overcome is safe transportation of hazardous materials (HAZMATs). The low probability/high consequence nature of the HAZMAT transportation necessitates assessing the risk associated with HAZMAT transportation. To fully understand the potential consequences of HAZMAT accidents, estimating the diffusion area under different spill volumes for
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Numerical Analysis of Two Immiscible Fluids in Porous Media by the Multiscale and Homogenization Methods J. Porous Media (IF 2.3) Pub Date : 2023-04-01 Elaf Mahrous, Asif Hoda, Dina Alsheikh
This paper proposes a numerical model for simulating an immiscible compressible two-phase flow in a periodic heterogeneous porous media with application to a coal-bed methane extraction system. The flow of methane in a coal sample submerged in water is simulated using the multiscale homogenization method as well as the averaged macroscopic approach. A weak formulation is used to discretize the governing
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Thermo-fluidic convective flow study of hybrid nanofluid in an inverted T-shaped porous enclosure under uniformly acting magnetic field J. Porous Media (IF 2.3) Pub Date : 2023-03-01 Sumant Kumar, Krishna Murthy VSSNVG Somanchi, B. V. Rathish Kumar, Deepika Parmar
This research work attempted to analyze the impact of magnetic field having various inclination angles on the hydrothermal convective flow and heat transport phenomena in an inverted T-shaped porous enclosure saturated with the water-based hybrid nanofluid. Firstly, a comparative study for accessing the significance and applicability of the hybrid nanofluid over simple fluid (water) is accomplished
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Three temperature model for heat and mass transfer in non-Newtonian Cu-EG nanofluids embedded with permeable medium J. Porous Media (IF 2.3) Pub Date : 2023-03-01 Jeevanpreet Kaur, Urvashi Gupta
Upsurge in heat transfer due to temperature gradient between fluid and porous matrix has worth in wide range of applications such as drying technologies, fuel cell, solar energy collectors and heat exchangers, etc. With reference to this, our paper primarily addresses free convective heat and mass transmission in Cu-EG Oldroyd-B nanofluid in a porous medium utilizing three temperature model. The transport
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Closure to the Special Issue ‘Phase Change, Interphase Coupling, and Multiphase Transport in Porous Structures' J. Porous Media (IF 2.3) Pub Date : 2023-02-01 Huijin Xu, Chen Yang, Liu Yang, Renfeng Yang
Multiphase flows and phase change phenomena are often encountered in many engineering systems. Multiphase flows refer to the interactive flow of distinct phases and each phase discriminated by common interfaces in a channel represents a mass or volume of matter. Multiphase flows can occur in a single-component or multicomponent system. Understanding fundamentals and mechanisms of multiphase transport
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Solution of counter-current imbibition phenomenon in fluid flow through inclined porous media by reduced differential transform method J. Porous Media (IF 2.3) Pub Date : 2023-02-01 Pratiksha More, Priti Tandel
This study presents the mathematical model of the counter-current imbibition phenomenon that occurs through inclined homogeneous and heterogeneous porous media. The effect of relative permeability, capillarity, and heterogeneity of porous materials such as Glass beads, Touchet silt loam,and Fragmented mixture on the saturation rate of a reservoir is investigated and discussed. A variety of different
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Efficacy of Porous Media on Fluid-Induced Vibration of A Fluctuating Cylinder J. Porous Media (IF 2.3) Pub Date : 2023-02-01 Somayeh Davoodabadi Farahani, Behnam kazemi majd, Abazar Abadeh
In this research, the numerical simulation of the vibrations caused by the release of the vortex from the surface of the two-degree-of-freedom circular cylinder, under the elastic support with the porous cover, has been done. The laminar flow around the cylinder is considered and Reynolds number is less than 250. The effect of the porous layer is investigated by considering its different thicknesses
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Feedback Control of Chaotic Motion in a Anisotropic Porous Medium under Magnetic Effect J. Porous Media (IF 2.3) Pub Date : 2023-02-01 R Surendar, Muthtamil selvan
We investigated the effects of feedback control on chaotic motion in a viscoelastic fluid saturated anisotropic porous layer subjected to the magnetic field and heated from below. A nonlinear low-dimensional Brinkman model employed by using the truncated Galerkin method. The emergence of various non-linear flows of steady-state, periodic, and oscillatory to chaotic convection demonstrated with the
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A review of research on imbibition mechanism of unconventional oil and gas reservoirs J. Porous Media (IF 2.3) Pub Date : 2023-01-01 Liu Yang, Duo Yang, Canhua Liu, Sheng Li, Jianying He, Yuxue Li
The process of spontaneously inhaling a certain wetting phase fluid in a porous medium is called imbibition. Reasonable utilization of the imbibition process can improve oil and gas recovery. This phenomenon has been widely used in fractured reservoirs. With the increasing development of unconventional oil and gas such as shale oil, the imbibition process of unconventional reservoirs has become a hot
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PREFACE: COMPUTATIONAL HEAT AND FLUID FLOW IN POROUS MEDIA (PART 1) J. Porous Media (IF 2.3) Pub Date : 2023-01-01 Gui-Hua Tang, Gongnan Xie, Liang Gong
This is the Preface of the Special Issue dedicated to the 8th Asian Symposium on Computational Heat Transfer and Fluid Flow (ASCHT 2021).
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MHD FLOW OF CNT-H2O NANOFLUID NEAR A VERTICAL PLATE IN A POROUS MEDIUM WITH REFERENCE TO CAPUTO FRACTIONAL DERIVATIVE: AN APPLICATION TO WATER PURIFICATION J. Porous Media (IF 2.3) Pub Date : 2023-01-01 Orugonda Mahitha, Vijaya Kumar Avula Golla
This paper investigates heat transmission near the surface of a vertical plate in the flow of a radiating nanofluid in an optically thick and porous medium as well as mass diffusion in the presence of a heat source/sink and a uniform magnetic flux. An H2O-based nanofluid with carbon nanotube (CNT) suspensions is considered in the fluid problem. Boussinesq's approximation was used to simulate the pressure
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PORE SCALE INVESTIGATION ON THE EFFECT OF TEMPERATURE ON THREE-PHASE REACTIVE FLOW IN POROUS MEDIA USING THE LATTICE BOLTZMANN METHOD J. Porous Media (IF 2.3) Pub Date : 2023-01-01 Da Zhang, Sufen Li, Yan Li, Yan Zhang
In this study, the process of carbonate rock acidification with three-phase immiscible fluid [water, oil, and supercritical carbon dioxide (scCO2)] reactive flow in nonisothermal condition at pore scale was simulated by the lattice Boltzmann method (LBM). The three immiscible fluids' flow, solute transport, and heat transfer were solved by the Shan−Chen multiphase multicomponent lattice Boltzmann model
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IMPACT OF NANO-LUBRICATION ON SINGLE-LAYERED POROUS HYDRODYNAMIC JOURNAL BEARING: A HYPOTHETICAL APPROACH J. Porous Media (IF 2.3) Pub Date : 2023-01-01 Biplab Bhattacharjee, Nabarun Biswas, Prasun Chakraborti, Kishan Choudhuri, Pathinettampadian Gurusamy
In this article, a mathematical model of single layered nanofluid lubricated porous journal bearing (PJB) has been formulated. The nano-lubricant's impact on the efficiency of said journal bearing has been studied using modified Darcy's law and boundary conditions. The different nanoparticles often used as an additive in industrial lubricating oils improve their viscosity significantly. The brief description