TY - JOUR AU - MONICA, M. AU - SUCHARITHA, J. AU - KISHORE, CH PY - 2017/07/15 Y2 - 2024/03/28 TI - EFFECTS OF EXOTHERMIC CHEMICAL REACTION WITH ARRHENIUS ACTIVATION ENERGY, NON-UNIFORM HEAT SOURCE/SINK ON MHD STAGNATION POINT FLOW OF A CASSON FLUID OVER A NONLINEAR STRETCHING SHEET WITH VARIABLE FLUID PROPERTIES AND SLIP CONDITIONS JF - Journal of the Nigerian Mathematical Society JA - JNMS VL - 36 IS - 1 SE - Articles DO - UR - https://ojs.ictp.it/jnms/index.php/jnms/article/view/93 SP - 163 - 190 AB - In this analysis, effects of exothermic chemical<br />reactions with Arrhenius activation energy, non-uniform heat<br />source/sink on magnetohydrodynamic stagnation point flow of<br />a Casson fluid over a nonlinear stretching sheet with variable viscosity,<br />thermal conductivity and slip boundary conditions have<br />been investigated. An appropriate similarity transformations<br />were used to transform the governing partial differential equations<br />into coupled nonlinear ordinary differential equations. The<br />transformed ordinary differential equations were then solved by<br />efficient numerical technique known as Keller Box method. The<br />various parameters such as Prandtl number (Pr), Eckert number<br />(Ec), Magnetic parameter (M), Casson parameter (β), thermal<br />radiation (R), non-uniform heat source/sink ($A^∗$, $B^∗$) , velocity<br />ratio parameter(λ), nonlinear stretching parameter (n), chemical<br />reaction rate constant (α), activation energy (E) , temperature<br />dependent viscosity (ξ) , temperature dependent thermal<br />conductivity ($\epsilon$) and slip parameters ($S_1$, $S_2$, $S_3$ ) determining<br />the velocity, temperature and concentration distributions,<br />the local Skin friction coefficient, the local Nusselt number and<br />the local Sherwood number governing such a flow were also analyzed.<br />On analysis it has been found that the Skin friction<br />coefficient, Local Nusselt number and Local Sherwood number<br />decreases with respect to velocity, thermal and concentration<br />slips respectively. ER -