Diffusion of heat downstream of a turbulence grid
Abstract
The diffusion of temperature downstream of a partially heated turbulence grid leads to a mixing layer involving only non-uniformities of temperature. The thermal wake of a heated wire downstream of a turbulence grid provides a corresponding diffusion case. These two flows are analyzed by a relatively simple method to point out their main features and their fundamental importance in the phenomenology of passive scalars. Our predictions are compared with available data; the need for additional experimental results on such flows is noted.
- Publication:
-
Acta Astronautica
- Pub Date:
- October 1975
- DOI:
- 10.1016/0094-5765(75)90025-9
- Bibcode:
- 1975AcAau...2..867L
- Keywords:
-
- Aerothermodynamics;
- Mixing Length Flow Theory;
- Thermal Diffusion;
- Turbulent Diffusion;
- Flow Measurement;
- Mixing Layers (Fluids);
- Temperature Distribution;
- Wire Cloth;
- Fluid Mechanics and Heat Transfer