Viscous and Ohmic heating effects in doubly stratified free convective flow over vertical plate with radiation and chemical reaction

作     者：P.GANESAN R.K.SUGANTHI P.LOGANATHAN 

作者机构：Department of Mathematics Anna University Chennai 

出 版 物：《Applied Mathematics and Mechanics(English Edition)》 (应用数学和力学（英文版）)

年 卷 期：2013年第34卷第2期

页      面：139-152页

核心收录：

学科分类：080103[工学-流体力学] 08[工学] 0801[工学-力学（可授工学、理学学位）] 

基　　金：the University Grants Commission  Government of India  for the financial support under Research Fellowship in Science for Meritorious Students Research Scholars 

主　　题：thermal stratification mass stratification Ohmic dissipation viscousdissipation chemical reaction radiation 

摘      要：An analysis is carried out to study the combined effects of viscous and Ohmic heating in the transient, free convective flow of a viscous, incompressible, and doubly stratified fluid past an isothermal vertical plate with radiation and chemical reactions. The governing boundary layer equations are solved numerically by an implicit finite difference scheme of the Crank-Nicolson type. The influence of different parameters on the velocity, the temperature, the concentration, the skin friction, the Nusselt number, and the Sherwood number is discussed with graphical illustrations. It is observed that an increase in either the thermal stratification or the mass stratification parameter decreases the velocity. An increase in the thermal stratification increases the concentration and decreases the temperature while an opposite effect is observed for an increase in the mass stratification. An augmentation in viscous and Ohmic heating increases the velocity and temperature while decreases the concentration. The results are found to be in good agreement with the existing solutions in literature.