Effects of Some Thermo-Physical Parameters on Free Convective Heat and Mass Transfer over Vertical Stretching Surface at Absolute Zero
- سال انتشار: 1395
- محل انتشار: مجله تحقیقات انتقال حرارت و توده، دوره: 3، شماره: 1
- کد COI اختصاصی: JR_JHMTR-3-1_004
- زبان مقاله: انگلیسی
- تعداد مشاهده: 31
نویسندگان
Federal University Of Technology, Akure, Ondo State, Nigeria.
Federal University of Technology, Akure, Ondo State, Nigeria.
Federal University of Technology, Akure, Ondo State, Nigeria.
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.کلیدواژه ها
Free convection, Newtonian fluid, Variable fluid viscosity, Surface at Absolute zero, Dufour and Soretاطلاعات بیشتر در مورد COI
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