COMPUTER PROGRAM FOR CORRECTION OF BOUNDARY LAYER PRESSURE FLUCTUATIONS FOR HYDROPHONE SIZE AND BOUNDARY LAYER THICKNESS EFFECTS--OPTION 1

The validity of the Lyamshev-Salosina method of obtaining a universal curve of turbulence pressures in dimensionless parameters is verified, on the whole, by applying it to several sets of available data. The method introduces a correction to include the effect of the boundary-layer displacement thickness, delta star, as well as the transducer size r. Based on this confirmation, a more accurate formulation is proposed for mathematical models representing the observed pressure statistics. Then, using the Maestrello original formulation for the observed pressure statistics and the revised formulation developed here, computer results (Option 1) are compared for both the power spectrum of the turbulent wall pressures and for the mean square of the displacement. Finally, the general effect of transducer size on the pressure model and corresponding vibroacoustic response is analytically investigated.

• Corporate Authors:

  Naval Ship Research and Development Center

  Bethesda, MD  United States  20034
• Authors:
  • Leibowitz, R C
  • Wallace, D R
• Publication Date: 1970-9

Media Info

• Features: References;
• Pagination: 35 p.

Subject/Index Terms

• TRT Terms: Atmospheric pressure; Boundary layer; Flow; Power spectra; Turbulence; Turbulent boundary layer; Vibration
• Old TRIS Terms: Flow induced vibration; Pressure fluctuations
• Subject Areas: Design; Marine Transportation;

Filing Info

• Accession Number: 00033678
• Record Type: Publication
• Source Agency: Naval Ship Research and Development Center
• Report/Paper Numbers: 2976A
• Files: TRIS
• Created Date: Jul 28 1973 12:00AM