Effect of local surface heating on the transition to turbulence in a three-dimensional boundary layer of a gas
Abstract
In earlier studies, the possibility of using local heating to increase the stability of a laminar boundary layer of a gas has been demonstrated theoretically and experimentally for two-dimensional boundary layers. In the study reported here, experiments were carried out to determine the effect of local heating on the laminar-turbulent transition in a three-dimensional boundary layer. It is shown that local heating can be used to delay the laminar-turbulent transition in three-dimensional boundary layer flows. In particular, local heating lowers the requirements for the acceptable surface roughness for laminar boundary layers.
- Publication:
-
Akademiia Nauk SSSR Sibirskoe Otdelenie Izvestiia Seriia Tekhnicheskie Nauki
- Pub Date:
- December 1990
- Bibcode:
- 1990SiSSR.......43D
- Keywords:
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- Boundary Layer Stability;
- Boundary Layer Transition;
- Gas Flow;
- Hot Surfaces;
- Three Dimensional Boundary Layer;
- Wind Tunnel Tests;
- Flow Visualization;
- Oscillating Flow;
- Subsonic Wind Tunnels;
- Vortices;
- Fluid Mechanics and Heat Transfer