Thermodynamic second law analysis of magneto-micropolar fluid flow past nonlinear porous media with non-uniform heat source  

作　　者：E.O.Fatunmbi S.O.Salawu 

机构地区：[1]Department of Mathematics and Statistics,Federal Polytechnic,Ilaro,Nigeria [2]Department of Mathematics,Landmark University,Omu-Aran,Nigeria

出　　处：《Propulsion and Power Research》2020年第3期281-288,共8页推进与动力（英文）

摘　　要：This study analyzes the second law of thermodynamic for entropy generation in an irreversible hydromagneto-micropolar flow system with non-homogenous heat generation.The non-symmetric microstructure fluid flow past a stretching sheet with saturated porous nonlinear media under magnetic field influence.Ignoring the fluid particle deformation,the microstructure is assumed rigid with the viscous suspended medium.The reduced dimensionless nonlinear formulated model is computationally coded and solved to obtain solutions for the entropy volumetric production,Bejan number and heat transfer magneto-micropolar fluid.The parameter dependent solutions for the flow characteristics and irreversibility processes are plotted and discussed.It is revealed from the study that minimization of entropy generation in a magneto-micropolar flow system is possible by improving the thermodynamic equilibrium with low material variables,viscosity and hysteresis magnetic.Also,it is seen that the terms that encourage internal heat generation reduces the micropolar fluid viscosity in the system.

关 键 词：MICROPOLAR Non-Newtonian fluid Entropy generation Stretching sheet Thermodynamic law 

分 类 号：O17[理学—数学]