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Heat transfer enhancement in stagnation point flow of ferro-copper oxide/water hybrid nanofluid: A special case study
Case Studies in Thermal Engineering ( IF 6.4 ) Pub Date : 2021-11-01 , DOI: 10.1016/j.csite.2021.101615
Hassan Waqas 1 , Shan Ali Khan 1 , Taseer Muhammad 2 , Syed Muhammad Raza Shah Naqvi 3
Affiliation  

This present work is to investigate the behavior of Fe3O4CuO/H2O hybrid-type nanofluid flow toward a magnetic field for enhancing the thermal transfer by horizontal stretchable surface. In the base fluid different tiny-sized nanoparticles collides and enhanced the heat transformation in the absence of magnetic field. Here the combinations of Fe3O4CuO/H2O as hybrid nanofluids and CuO/H2O as nanofluid are implemented. The Ferro and Copper oxide are dispersed in water base fluid. Such Ferro nanomaterials are more fruitful in production technology, protein absorption, catalysis, medical technology and environment. The implementation of Fe3O4 NPs in medical science mainly involves targeted drug/gene delivery, biosensor, magnetic resonance imaging (MRI), contrast improvement and hyperthermia, biophotonics, detection of cancer cells, diagnosis and magnetic field-assisted radiotherapy and tissue engineering. Copper oxide used as a catalyst for increasing the rate of combustion in rocket propellant. It may significantly increase the homogenous propellant burning rate, lower the pressure index, and boost the effectiveness of the AP composite propellant as a catalyst. In additional, the governing coupled dimensional equations are reduced into the ordinary once with associated the suitable similarities. The resultant dimension-less expressions are programmed in the computational MATLAB software via bvp4c solver with shooting scheme. The important outcomes of this investigation are the behavior of numerous good parameters including stretching ratio parameterA, magnetic parameterβ, volumetric frictions for nanoparticlesϕ, suction/injection parameterfw and thermal radiation parameterRd. The physical behavior of above discussed sundry parameters is described through figures. The dispersion of Fe3O4 and CuO in water-based fluid significantly improved the phenomenon of heat transfer. Results found that the velocity field is escalates when the stretching ratio parameter is enhanced. Furthermore, larger values of the suction/injection parameter causes a reduction in velocity profile for A<1 and A>1. The induced magnetic field is improved with larger estimations of the nanoparticle fraction. Thermal field is escalates by growing thermal radiation parameter and Eckert number. It is further observed that temperature profile is reduces by increasing stretching ratio parameter. From the analysis we noted that skin friction is raises via larger estimations of magnetic parameter.



中文翻译:

铁铜氧化物/水杂化纳米流体驻点流中的传热增强:特殊案例研究

目前的工作是调查 F电子34-C/H2混合型纳米流体流向磁场以通过水平可拉伸表面增强热传递。在没有磁场的情况下,不同的微小纳米颗粒在基液中碰撞并增强了热转化。这里的组合F电子34-C/H2 作为混合纳米流体和 C/H2随着纳米流体的实施。铁和氧化铜分散在水基流体中。此类铁纳米材料在生产技术、蛋白质吸收、催化、医疗技术和环境等方面的成果更为丰富。实施F电子34医学中的纳米粒子主要涉及靶向药物/基因递送、生物传感器、磁共振成像(MRI)、对比度改善和热疗、生物光子学、癌细胞检测、诊断和磁场辅助放疗和组织工程。氧化铜用作催化剂以提高火箭推进剂的燃烧速度。可显着提高均质推进剂燃烧速率,降低压力指数,提高AP复合推进剂作为催化剂的有效性。此外,控制的耦合维度方程被简化为具有相关相似性的普通方程。生成的无量纲表达式通过带有射击方案的 bvp4c 求解器在计算 MATLAB 软件中编程。一种, 磁参数β, 纳米颗粒的体积摩擦φ, 吸/进样参数F 和热辐射参数电阻d. 上面讨论的各种参数的物理特性通过图来描述。的分散F电子34C在水基流体中显着改善了传热现象。结果发现,当拉伸比参数增大时,速度场增大。此外,吸入/注入参数的较大值会导致速度分布降低一种<1一种>1. 感应磁场随着对纳米颗粒分数的更大估计而得到改善。热场随着热辐射参数和埃克特数的增加而增加。进一步观察到温度分布通过增加拉伸比参数而降低。从分析中我们注意到皮肤摩擦是通过对磁参数的较大估计而增加的。

更新日期:2021-11-01
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