期刊名称：Walailak Journal of Science and Technology (WJST)
印刷版ISSN：2228-835X
出版年度：2016
卷号：14
期号：2
页码：169-187
语种：English
出版社：Institute of Research and Development, Walailak University.
摘要：This paper investigates the entropy generation analysis of the unsteady two-dimensional magnetohydrodynamic (MHD) flow of electrically conducting non-Newtonian Casson fluid and heat transfer towards a stretching sheet in the presence of uniform transverse magnetic field with viscous dissipation and Joule heating effects. Using similarity solutions, the governing partial differential equations are transformed into ordinary differential equations and then solved numerically by MATLAB function bvp4c . The results of the present study indicate that the flow and temperature fields are significantly influenced by unsteadiness parameter Casson parameter , magnetic parameter Prandtl number and Eckert number It is found that the fluid velocity initially decreases with increase in the unsteadiness parameter and that temperature decreases significantly due to the unsteadiness parameter. Also, the effect of increasing values of the Casson parameter is to suppress the velocity field and the temperature distributions. The influences of the same parameters, as well as the Reynolds number and the Brinkman number on the entropy generation, are also discussed.
