Unsteady, exponentially-varying standing waves in boundary layers
Abstract
The simulation of boundary layer transition in test facilities would be useful in connection with the development of more efficient vehicles with a higher performance. An obstacle concerning the development of this capability is related to differences between the freestream disturbances in test facilities and the disturbances in the atmosphere. However, it is pointed out that (nondimensional) complete similarity of the disturbances is an excessively severe and impractical requirement. Tsuge et al. (1980, 1983) have provided a description of the spatial evolution of disturbances in terms of a superposition of solutions of the Orr-Sommerfeld equation. Additional mathematical poles suggest that the Orr-Sommerfeld equations admits two additional solutions. The present investigation is concerned with two standing wave solutions, giving attention to the structure of the standing waves.
- Publication:
-
AIAA, Aerospace Sciences Meeting
- Pub Date:
- January 1983
- Bibcode:
- 1983aiaa.meetU....R
- Keywords:
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- Boundary Layer Transition;
- Flow Stability;
- Flow Theory;
- Standing Waves;
- Orr-Sommerfeld Equations;
- Pressure Distribution;
- Reynolds Stress;
- Traveling Waves;
- Unsteady Flow;
- Velocity Distribution;
- Fluid Mechanics and Heat Transfer