Nonisothermal porous flow in transpiration-cooled nosetips
Abstract
An analysis of transpiration cooling is discussed, taking into account the boundary layer, the porous matrix, an assessment of thermal equilibrium, questions of viscous dissipation, and three-dimensional steady-state approximations. On the basis of the analysis results it is concluded that the liquid film on the surface provides a fixed temperature boundary condition for the porous matrix. The small pore size of typical porous material permits the use of an energy model based on thermal equilibrium between the material and the coolant.
- Publication:
-
Heat transfer 1974; Proceedings of the Fifth International Conference, Tokyo, Volume 5
- Pub Date:
- 1974
- Bibcode:
- 1974hetr....5...93S
- Keywords:
-
- Porous Materials;
- Rocket Nose Cones;
- Surface Temperature;
- Sweat Cooling;
- Thermal Protection;
- Angle Of Attack;
- Boundary Conditions;
- Boundary Layer Flow;
- Fluid Films;
- Heat Shielding;
- Isothermal Flow;
- Porous Boundary Layer Control;
- Thermal Stability;
- Viscous Flow;
- Fluid Mechanics and Heat Transfer