سال انتشار: ۱۳۹۱

محل انتشار: بیستمین کنفرانس سالانه مهندسی مکانیک

تعداد صفحات: ۴

نویسنده(ها):

K. Javaherdeh – Faculty of Mechanical Engineering, Guilan University, Rasht, Iran
H. Karimi – Department of Mechanical Engineering, Islamic Azad University, Roudsar-Amlash Branch, Roudsar, Iran

چکیده:

Natural convection heat and mass transfer past a moving vertical plate in porous medium have been studied in this research. The fluid is exposed to constant magnetic flux which is vertically to fluid direction. The surface situated in variable temperature and variable boundary conditions. The equations solved in fully implicit finite difference numerically solution after getting dimensionless in numerically solution method. Grashof number, MHD number, Bouyancy ratio, concentration and temperature changes power low index are presented for local Nusselt number, Sherwood number and presented graphically for temperature, velocity and concentration. The results of this research define that the fluid velocity increases when buoyancy forces effect on the amount of velocity and Grashof number increases. This research evaluated the concentration and temperature changing power index effect and resulted that it’s increasing, the heat and mass transferring amount increased too but the fluid decreased that caused by the concentration and temperature increasing through the power index increasing and fluid more inclination for heat and masstransferring are acceptable.