Comparison of semi-empirical models for turbulent boundary layer wall pressure spectra

Wall pressure-fluctuation spectra at small backward-facing steps

A formulation for turbulent-flow-induced vibration of elastic plates with general boundary conditions

Wall-pressure spectra models for supersonic and hypersonic turbulent boundary layers

Results of analyzing flight-test data of pressure-fluctuation fields in front of forward-facing steps and behind backward-facing steps are presented. The range of dimensionless step heights (normalized by boundary-layer displacement thickness) in the flight test was 0.042-0.236. The flight tests covered a mach-number range from 0.57 to 1.97. In the mach-number ranges covered by wind-tunnel tests (0.57 to 0.78 and 1.5 to 2) data agree very well with the flight data. Very importantly, the flight-test data fill in the gap previously existing for small-step pressure-fluctuations in the range of mach 0.78 to 1.5. Increased pressure-fluctuations were observed in the transonic region.

/pdf/influence-of-small-steps-on-wall-pressure-fluctuation-42fqvk64rh.pdf

Influence of small steps on wall pressure fluctuation spectra measured on tu-144ll flying laboratory

Similarity criteria for the spectra of wall pressure fluctuations in a turbulent boundary layer

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Similarity criteria for the spectra of wall pressure fluctuations in a turbulent boundary layer