The role of temperature dependent viscosity is studied in the flow and vortex instability of a heated horizontal free convection boundary layer flow. Numerical results for the Nusselt, shear stress, critical Grashof, and wave numbers are presented for Prandtl numbers Pr∞= 0.7, 7, 50, 100, and 500. It is shown that, for liquid heating, variable viscosity effect enhances the heat transfer rate and destabilizes the flow, while for gas heating, the opposite trend is true.
All Science Journal Classification (ASJC) codes
- Numerical Analysis
- Condensed Matter Physics