MHD mixed convection stagnation point flow of a hybrid nanofluid past a vertical flat plate with convective boundary condition

被引:110
|
作者
Zainal, Nurul Amira [1 ,2 ]
Nazar, Roslinda [1 ]
Naganthran, Kohilavani [1 ]
Pop, Ioan [3 ]
机构
[1] Univ Kebangsaan Malaysia, Fac Sci & Technol, Dept Math Sci, Ukm Bangi 43600, Selangor, Malaysia
[2] Univ Tekn Malaysia Melaka, Fak Teknol Kejuruteraan Mekanikal & Pembuatan, Durian Tunggal 76100, Melaka, Malaysia
[3] Babes Bolyai Univ, Dept Math, R-400084 Cluj Napoca, Romania
关键词
hybrid nanofluid; MHD; mixed convection; convective boundary condition; stability analysis; HEAT-TRANSFER APPLICATIONS; STRETCHING SHEET; LAYER-FLOW; DUAL SOLUTIONS; SURFACE; VISCOSITY; ADJACENT;
D O I
10.1016/j.cjph.2020.03.022
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The steady magnetohydrodynamics (MHD) mixed convection stagnation point flow of a hybrid nanofluid past a vertical flat plate with convective boundary condition is investigated in this study. By choosing appropriate similarity variables, the partial differential equations are transformed into a system of linear equations which are solved afterwards by using the boundary value problem solver, namely bvp4c in Matlab software. The solutions of the ordinary differential equations are proven to have two branches which are upper and lower solutions in a certain range of the mixed convection parameter. This leads to the execution of a stability analysis that verifies the achievable solution of the upper branch which is considered stable while the lower branch is unstable. The findings exposed that the fluid velocity increases with the increasing value of the magnetic parameter while the fluid temperature is decreased contradictory.
引用
收藏
页码:630 / 644
页数:15
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