Unsteady heat transfer due to time-dependent free stream velocity
Abstract
The present work was undertaken in order to study the unsteady combined convection from a horizontal circular cylinder to a transverse flow. A coordinate perturbation method is used to transform the governing set of partial differential equations into a system of ordinary differential equations. The free stream time-dependent velocity was assumed to be sinusoidal and the boundary layer response due to both low as well as high frequencies of oscillation will be studied. Currently numerical solutions are being obtained for the distribution of the unsteady Nusselt number and the friction factor.
- Publication:
-
Structural Integrity and Durability of Reusable Space Propulsion Systems
- Pub Date:
- May 1985
- Bibcode:
- 1985sidr.nasa...39G
- Keywords:
-
- Aerodynamic Heating;
- Convective Heat Transfer;
- Surface Cooling;
- Turbine Wheels;
- Turbomachine Blades;
- Boundary Layers;
- Free Flow;
- Partial Differential Equations;
- Perturbation;
- Sine Waves;
- Stable Oscillations;
- Fluid Mechanics and Heat Transfer