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Entropy generation to predict irreversibilities in poroelastic film with multiple forces: spectral study
Indian Journal of Physics ( IF 2 ) Pub Date : 2021-01-02 , DOI: 10.1007/s12648-020-01922-0
Srinivas Jangili , B. Mallikarjuna , G. Gopi Krishna

The present investigation is useful in medical engineering treatments, in which biothermal therapy is one of the popular treatments. The investigation of transport phenomena of fluid flow and heat in those applications requires multi-physical models featuring heat transfer and deformable porous media. In view of this, it is anticipated to study the influence of thermal buoyancy force and nonlinear radiation on the irreversibility, flow field, solid deformation, and heat transfer characteristics in viscous radiated fluid flow in a vertical deformable porous film. The combined phenomenon of the flow field movement and solid deformation in the porous medium is considered. The flow governing equations are non-dimensionalized and solved numerically by employing Chebyshev spectral method. The impact of important parameters on the fluid velocity, solid displacement, and fluid temperature profiles is depicted graphically and interpreted at length. In the deformable porous layer, it is perceived that the fluid velocity, solid displacement, and fluid temperature profiles decrease with an increase in suction/injection parameter values. The present physical model finds applications in geomechanics (Coussy in Mechanics of porous continua, Wiley, New York, 1995; Biot in J Appl Phys 12(2):155–164, 1941) and biomedical engineering (Mow et al. in J Biomech 17(5):377–394, 1984; Barry et al. in J Appl Math Phys 42:633–648, 1991; Lai et al. in J Biomech Eng 131:245-258, 1991).



中文翻译:

熵产生可预测多孔弹性膜在多种力下的不可逆性:光谱研究

本研究在医学工程治疗中是有用的,其中生物热疗法是流行的治疗之一。在这些应用中,对流体流动和热量的传输现象的研究需要以传热和可变形多孔介质为特征的多物理模型。有鉴于此,期望研究热浮力和非线性辐射对垂直可变形多孔膜中粘性辐射流体流动中不可逆性,流场,固体变形和传热特性的影响。考虑了多孔介质中流场运动和固体变形的综合现象。流量控制方程是无量纲的,并采用切比雪夫谱方法进行数值求解。重要参数对流体速度的影响 固体位移和流体温度曲线以图形方式描绘并详细解释。在可变形的多孔层中,可以看出,随着吸力/喷射参数值的增加,流体速度,固体排量和流体温度分布减小。目前的物理模型在地质力学中(Coussy在《多孔连续体力学》中的研究,Wiley,纽约,1995年; Biot在J Appl Phys 12(2):155-164,1941年)和生物医学工程(Mow等人在J Biomech中的应用)中找到了应用。 17(5):377-394,1984; Barry等在J Appl Math Phys 42:633-648,1991; Lai等在J Biomech Eng 131:245-258,1991)。流体温度曲线随吸入/喷射参数值的增加而降低。目前的物理模型在地质力学中(Coussy在《多孔连续体力学》中的研究,Wiley,纽约,1995年; Biot在J Appl Phys 12(2):155-164,1941年)和生物医学工程(Mow等人在J Biomech中的应用)中找到了应用。 17(5):377-394,1984; Barry等在J Appl Math Phys 42:633-648,1991; Lai等在J Biomech Eng 131:245-258,1991)。流体温度曲线随吸入/喷射参数值的增加而降低。目前的物理模型在地质力学中(Coussy在《多孔连续体力学》中的研究,Wiley,纽约,1995年; Biot在J Appl Phys 12(2):155-164,1941年)和生物医学工程(Mow等人在J Biomech中的应用)中找到了应用。 17(5):377-394,1984; Barry等在J Appl Math Phys 42:633-648,1991; Lai等在J Biomech Eng 131:245-258,1991)。

更新日期:2021-01-02
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