Interaction of unsteady thermal boundary layer with a wall of finite thickness at stagnation point
Abstract
An analysis is presented for an unsteady, laminar, forced convective heat transfer at a two-dimensional front stagnation due to a step change in free stream temperature. The thermal boundary layer response when the free stream temperature is subjected to a step change is first considered. Next, the mutual interaction of the non-steady thermal boundary layer and the solid of finite thickness insulated on the back face is analyzed. The parameters characterizing the nature of heat transfer are identified and numerical results for transient interface temperature and the temperature distribution profiles both in the fluid and the solid body have been presented. The results obtained for the case of step change in free stream temperature can be readily generalized to include arbitrary variations of free stream temperature by making use of the superposition technique.
- Publication:
-
26th Heat Transfer and Fluid Mechanics Institute Meeting
- Pub Date:
- 1978
- Bibcode:
- 1978htfm.meet..163J
- Keywords:
-
- Convective Heat Transfer;
- Forced Convection;
- Stagnation Point;
- Thermal Boundary Layer;
- Unsteady Flow;
- Wall Flow;
- Free Flow;
- Laminar Boundary Layer;
- Laminar Heat Transfer;
- Temperature Distribution;
- Thermal Insulation;
- Transient Heating;
- Fluid Mechanics and Heat Transfer