HEAT TRANSFER DUE TO MHD SLIP FLOW OF A SECOND-GRADE LIQUID OVER A STRETCHING SHEET THROUGH A POROUS MEDIUM WITH NONUNIFORM HEAT SOURCE/SINK

被引:23
作者
Abel, M. Subhas [1 ]
Mahesha, N. [2 ]
Malipatil, Sharanagouda B. [3 ]
机构
[1] Gulbarga Univ, Dept Math, Gulbarga 585106, Karnataka, India
[2] MS Ramaiah Inst Technol, Dept Math, Bangalore, Karnataka, India
[3] PDA Coll Engn, Dept Math, Gulbarga, Karnataka, India
关键词
Magnetic field; Nonuniform heat source; sink; Porous medium; Second-grade liquid; Slip flow; Stretching sheet; POWER-LAW FLUID; ELECTRICALLY CONDUCTING FLUID; CONTINUOUS SOLID SURFACES; BOUNDARY-LAYER BEHAVIOR; NON-NEWTONIAN FLUIDS; VISCOELASTIC FLUID; CONVECTION; SUCTION;
D O I
10.1080/00986445.2010.499848
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
An analysis is carried out to study the heat transfer characteristics of a second-grade non-Newtonian liquid due to a stretching sheet through a porous medium under the influence of external magnetic field. The stretching sheet is assumed to be impermeable. Partial slip condition is used to study the flow behavior of the liquid. The effects of viscous dissipation, nonuniform heat source/sink on the heat transfer are addressed. The nonlinear partial differential equations governing momentum and heat transfer in the boundary layer are converted into nonlinear ordinary differential equations using similarity transformation. Analytical solutions are obtained for the resulting boundary value problems in the case of two types of boundary heating, namely, constant surface temperature (CST) and prescribed surface temperature (PST). The effects of slip parameter, second-grade liquid parameter, combined (magnetic and porous) parameter, Prandtl number, Eckert number, and nonuniform heat source/sink parameters on the heat transfer are shown in several plots. Analytical expressions for the wall frictional drag coefficient and wall temperature gradient are obtained.
引用
收藏
页码:191 / 213
页数:23
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