Wave‐number‐frequency spectrum of turbulent wall pressure fluctuations

1991 ◽  
Vol 89 (4B) ◽  
pp. 1867-1867
Author(s):  
Carolyn Karangelen
Keyword(s):  
Frequency Spectrum ◽  
Pressure Fluctuations ◽  
Wall Pressure ◽  
Wave Number ◽  
Wall Pressure Fluctuations ◽  
Number Frequency ◽  
Turbulent Wall

Deconvolution of Wave-Number-Frequency Spectra of Wall Pressure Fluctuations

AIAA Journal ◽  
2020 ◽  
Vol 58 (1) ◽  
pp. 164-173 ◽  
Author(s):  
Simon L. Prigent ◽  
Édouard Salze ◽  
Christophe Bailly
Keyword(s):  
Pressure Fluctuations ◽  
Wall Pressure ◽  
Wave Number ◽  
Frequency Spectra ◽  
Wall Pressure Fluctuations ◽  
Number Frequency

Spectral and Temporal Characteristics of Post-Stenotic Turbulent Wall Pressure Fluctuations

1979 ◽  
Vol 101 (2) ◽  
pp. 89-95 ◽  
Author(s):  
W. H. Pitts ◽  
C. F. Dewey
Keyword(s):  
Steady Flow ◽  
Pressure Fluctuations ◽  
Wall Pressure ◽  
Experimental Uncertainty ◽  
Flow Parameters ◽  
Wall Pressure Fluctuations ◽  
Power Spectral ◽  
Fluctuation Amplitude ◽  
Arterial Constriction ◽  
Turbulent Wall

The power spectral density of turbulent wall pressure fluctuations was measured in a tube downstream of a model arterial constriction. The flow parameters were varied from steady flow to conditions simulating human arterial pulsatile flow. Within the experimental uncertainty (±10 percent in characteristic turbulent frequency, fo, and ±25 percent in absolute rms pressure fluctuation amplitude), turbulent flow at the peak of systole produces wall pressure fluctuations identical to those of a steady flow at the same Reynolds number.

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