Unsteady mixed convection flow through a permeable stretching flat surface with partial slip effects through MHD nanofluid using spectral relaxation method

被引:6
作者
Ahamed, Sami M. [1 ]
Mondal, Sabyasachi [1 ]
Sibanda, Precious [1 ]
机构
[1] Univ KwaZulu Natal, Sch Math Stat & Comp Sci, ZA-3209 Pietermaritzburg, South Africa
关键词
MHD nanofluid; Slip condition; Internal heat source/sink; Spectral relaxation method; Permeable stretching surface; BOUNDARY-LAYER-FLOW; STAGNATION-POINT FLOW; HEAT-TRANSFER; THERMAL-CONDUCTIVITY; POROUS-MEDIUM; GENERATION/ABSORPTION; PLATE; SHEET;
D O I
10.1515/phys-2017-0036
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
An unsteady, laminar, mixed convective stagnation point nanofluid flow through a permeable stretching flat surface using internal heat source or sink and partial slip is investigated. The effects of thermophoresis and Brownian motion parameters are revised on the traditional model of nano fluid for which nano fluid particle volume fraction is passively controlled on the boundary. Spectral relaxation method is applied here to solve the nondimensional conservation equations. The results show the illustration of the impact of skin friction coefficient, different physical parameters, and the heat transfer rate. The nanofluid motion is enhanced with increase in the value of the internal heat sink or source. On the other hand, the rate of heat transfer on the stretching sheet and the skin friction coefficient are reduced by an increase in internal heat generation. This study further shows that the velocity slip increases with decrease in the rate of heat transfer. The outcome results are benchmarked with previously published results.
引用
收藏
页码:323 / 334
页数:12
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