Entropy Generation Analysis of the MHD Flow of Couple Stress Fluid between Two Concentric Rotating Cylinders with Porous Lining

被引：38

作者：

Nagaraju G. ^{[1
]}

Srinivas J. ^{[2
]}

Murthy J.V.R. ^{[3
]}

Rashad A.M. ^{[4
]}

机构：

[1] Department of Mathematics, GITAM University, Hyderabad Campus, Telangana

[2] Department of Mathematics, National Institute of Technology Meghalaya, Shillong

[3] Department of Mathematics, National Institute of Technology Warangal, Telangana

[4] Department of Mathematics, Faculty of Science, Aswan University, Aswan

来源：

Heat Transfer - Asian Research | 2017年 / 46卷 / 04期

关键词：

Beavers and Joseph condition; couple stress fluid; Darcy law; MHD flow;

D O I：

10.1002/htj.21214

中图分类号：

学科分类号：

摘要：

An attempt has been made to study the entropy generation analysis of couple stress fluid flow in an annulus between two concentric rotating vertical cylinders. There is a porous lining attached to the inside of an outer cylinder. The flow is under the influence of a radial magnetic field. The flow in the annular gap is caused by rotation of the cylinders. The Stokes couple stress flow model is employed. The flow in the porous sleeve is governed by Darcy's law. The velocity, temperature, entropy generation number, Bejan number, wall shear stress and heat transfer rate at the inner and outer cylinders are obtained numerically by employing a finite difference scheme with vanishing of couple stresses on the boundary. The effect of relevant parameters on the flow and entropy generation rate are discussed and depicted through graphs. © 2016 Wiley Periodicals, Inc.

引用

页码：316 / 330

页数：14

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