Melting heat and mass transfer in stagnation point micropolar fluid flow of temperature dependent fluid viscosity and thermal conductivity at constant vortex viscosity

http://dx.doi.org/10.1016/j.joems.2016.06.007

Abstract

Steady mixed convection micropolar fluid flow towards stagnation point formed on horizontal linearly
stretchable melting surface is studied. The vortex viscosity of micropolar fluid along a melting surface
is proposed as a constant function of temperature while dynamic viscosity and thermal conductivity are
temperature dependent due to the influence of internal heat source on the fluid. Similarity transformations were used to convert the governing equation into non-linear ODE and solved numerically. A parametric study is conducted. An analysis of the results obtained shows that the flow-field is influenced
appreciably by heat source, melting, velocity ratio, variable viscosity and thermal conductivity.