Entropy generation optimization of MHD Jeffrey nanofluid past a stretchable sheet with activation energy and non-linear thermal radiation

被引：44

作者：

Hayat, Tasawar ^{[1
,2
]}

Kanwal, Mehreen ^{[1
]}

Qayyum, Sumaira ^{[1
]}

Alsaedi, Ahmed ^{[2
]}

机构：

[1] Quaid I Azam Univ 45320, Dept Math, Islamabad 44000, Pakistan

[2] King Abdulaziz Univ, Fac Sci, Dept Math, Nonlinear Anal & Appl Math NAAM Res Grp, Jeddah 21589, Saudi Arabia

来源：

PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS | 2020年 / 544卷

关键词：

Entropy generation; Jeffrey nanofluid; MHD; Nonlinear thermal radiation; Activation energy; Viscous dissipation; Joule heating; BINARY CHEMICAL-REACTION; BOUNDARY-LAYER-FLOW; HOMOGENEOUS-HETEROGENEOUS REACTIONS; STAGNATION POINT FLOW; VISCOUS DISSIPATION; HEAT-TRANSFER; MAXWELL FLUID; MIXED CONVECTION; FORCED-CONVECTION; SLIP;

D O I：

10.1016/j.physa.2019.123437

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

This article aims to analyze flow of Jeffrey nanofluid. Entropy generation with Joule heating, activation energy, viscous dissipation and nonlinear thermal radiation is discussed. Brownian motion and thermophoresis impacts are also studied. Stretching sheet of variable thickness is considered. Homotopic convergent solutions are developed by using OHAM. Governing nonlinear equations are developed. Effects of the influential variables are addressed. Higher Deborah number have reverse effect on temperature and concentration when compared with velocity. Larger Deborah number decays fluid velocity while temperature and concentration are enhanced. Temperature and concentration of fluid are enhanced for thermophoresis parameter. Concentration and temperature for Brownian motion have reverse effect. Entropy generation enhances for larger Deborah, Hartmann and Brinkman numbers while Bejan number has opposite effects. (C) 2019 Elsevier B.V. All rights reserved.

引用

页数：18

共 48 条

[1] Numerical solution of binary chemical reaction on stagnation point flow of Casson fluid over a stretching/shrinking sheet with thermal radiation [J].