On unsteady MHD mixed convection in a nanofluid due to a stretching/shrinking surface with suction/injection using the spectral relaxation method

Boundary value problems

Nageeb A Haroun¹  Sabyasachi Mondal¹  Precious Sibanda¹  Sandile S Motsa¹ 

[1] School of Mathematics, Statistics and Computer Science, University of KwaZulu-Natal, Pietermaritzburg, South Africa

关键词: nanofluids;    dimensionless suction/injection;    magnetohydrodynamic;    Soret and Dufour effects;    heat generation parameter;   

DOI  :  10.1186/s13661-015-0289-5

学科分类：数学（综合）

来源: SpringerOpen

【 摘 要 】

In this study we investigate heat and mass transfer in magnetohydrodynamic mixed convection flow of a nanofluid over an unsteady stretching/shrinking sheet. The flow is subject to a heat source, viscous dissipation and Soret and Dufour effects are assumed to be significant. We have further assumed that the nanoparticle volume fraction at the wall may be actively controlled. The physical problem is modeled using systems of nonlinear differential equations which we have solved numerically using the recent spectral relaxation method. In addition to the discussion on physical heat and mass transfer processes, we also show that the spectral relaxation technique is an accurate technique for solving nonlinear boundary value problems.

【 授权许可】

CC BY