Thermophoretic particle deposition on unsteady convective slip flow over a wedge with variable fluid properties and variable Prandtl number

摘要

In this paper thermophoretic particle deposition on unsteady two dimensional convective slip flow over a wedge taking into account the temperature dependent fluid properties such as fluid viscosity and thermal conductivity have been studied numerically. Locally similar solutions are obtained by applying Nachtsheim-Swigert shooting iteration technique along with sixth order Runge-Kutta integration scheme. The nondimensional velocity, temperature and concentration as well as thermophoretic velocity and thermophoretic particle deposition velocity for various values of the pertinent parameters are displayed in graphically and tabulated form. In modeling, the thermal boundary layer flow with a temperature dependent viscosity and thermal conductivity, the Prandtl number must be treated as a variable to obtain realistic results. The obtained numerical results also show that both the fluid velocity and thermophoretic particle deposition velocity increase with the increasing values of the variable viscosity parameter as well as wedge angle parameter.