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Effects of Some Thermo-Physical Parameters on Free Convective Heat and Mass Transfer over Vertical Stretching Surface at Absolute Zero | ||
| Journal of Heat and Mass Transfer Research | ||
| مقاله 4، دوره 3، شماره 1 - شماره پیاپی 5، مرداد 2016، صفحه 31-46 اصل مقاله (1.36 M) | ||
| نوع مقاله: Full Length Research Article | ||
| شناسه دیجیتال (DOI): 10.22075/jhmtr.2016.424 | ||
| نویسندگان | ||
| Koriko Kolade Olubode1؛ Omowaye John2؛ Animasaun Isaac Lare* 2 | ||
| 1Federal University Of Technology, Akure, Ondo State, Nigeria. | ||
| 2Federal University of Technology, Akure, Ondo State, Nigeria. | ||
| تاریخ دریافت: 22 تیر 1393، تاریخ بازنگری: 15 آذر 1393، تاریخ پذیرش: 31 خرداد 1395 | ||
| چکیده | ||
| Effects of some thermo-physical parameters on free convective heat and mass transfer over a vertical stretching surface at lowest level of heat energy in the presence of suction is investigated. The viscosity of the fluid is assumed to vary as a linear function of temperature and thermal conductivity is assumed constant. A similarity transformation is applied to reduce the governing equations into a coupled ordinary differential equations corresponding to the momentum, energy and concentration equations. These equations along with the boundary conditions were also solved numerically using shooting method along with Runge-Kutta Gill method. The effects of thermo-physical parameters on the velocity, temperature and concentration profiles are shown graphically. It is found that with an increase in the value of temperature-dependent fluid viscosity parameter, the velocity increases while the temperature and concentration decreases across the flow region. Dufour, Soret, Frank-Kamenetskii, Prandtl and Schmidt number activation energy also have effect. Numerical data for the local skin-friction coefficient, the local Nusselt number and the local Sherwood number have been tabulated for various values of certain parameter conditions. | ||
| کلیدواژهها | ||
| Free convection؛ Newtonian fluid؛ Variable fluid viscosity؛ Surface at Absolute zero؛ Dufour and Soret | ||
| مراجع | ||
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