Turbulent wall pressure fluctuations in terms of spectral densities calculated from discrete and continuous Orr-Sommerfeld eigenfunctions
The hydrodynamic waves leading to pressure fluctuations in a turbulent boundary layer are generated as a result of the bursting process. Two classes of waves are involved in this response: (1) Discrete Tollmien-Schlichting waves; (2) The continuous spectrum waves. Various checks were made of eigenfunctions and eigenvalues of the homogeneous case against other theoretical results with close agreement. The calculated continuous and discrete wavenumber frequency spectral density response to a burst was examined against available experimental data with reasonable and sometimes close agreement. The discrepancy between the theoretical predictions and experimental results are explained in terms of the crudeness in the model of the burst and bursting statistics.
- Research Organization:
- New York Univ., NY (USA)
- OSTI ID:
- 6266159
- Resource Relation:
- Other Information: Thesis (Ph. D.)
- Country of Publication:
- United States
- Language:
- English
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