Stability analysis of unsteady MHD stagnation point flow and heat transfer over a shrinking sheet in the presence of viscous dissipation

被引:45
作者
Ismail, Nurul Syuhada [1 ,2 ]
Arifin, Norihan Md [1 ,2 ]
Nazar, Roslinda [3 ]
Bachok, Norfifah [1 ,2 ]
机构
[1] Univ Putra Malaysia, Fac Sci, Dept Math, Serdang 43400, Selangor, Malaysia
[2] Univ Putra Malaysia, Inst Math Res, Serdang 43400, Selangor, Malaysia
[3] Univ Kebangsaan Malaysia, Fac Sci & Technol, Sch Math Sci, Bangi 43600, Selangor, Malaysia
关键词
MHD; Stagnation point; Viscous dissipation; Suction; Stability analysis; BOUNDARY-LAYER-FLOW; MIXED CONVECTION; STRETCHING SHEET; VERTICAL SURFACE; MAXWELL FLUID; NANOFLUID; SLIP; RADIATION;
D O I
10.1016/j.cjph.2018.12.005
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The unsteady MHD stagnation-point flow and heat transfer over a shrinking sheet was carried out. This study also was conducted in the existence of suction and viscous dissipation. In order to convert the governing partial differential equations to an ordinary differential equation, an appropriate similarity transformation was applied in this study. Then, the resulting equations are worked out by Bvp4c solver in Matlab. The impacts of the parameters involved in this study towards skin friction, Nusselt number, velocity and temperature profile are showed graphically and thoroughly discussed. Remarkably, there were dual solutions present in this study which made us continue deeper in performing the stability analysis. As expected, our study proves that the solution is stable only in the first one while not in the second solution.
引用
收藏
页码:116 / 126
页数:11
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