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Updated: Jul 6, 2026
08:53
The Measurement of Unsteady Surface Pressure Using a Remote Microphone Probe
Published on: December 3, 2016
Low frequency wind noise contributions in measurement microphones
Richard Raspet1, Jiao Yu, Jeremy Webster
1National Center for Physical Acoustics and Department of Physics and Astronomy, University of Mississippi, University, Mississippi 38677, USA.
The Journal of the Acoustical Society of America
|March 19, 2008
Summary
This study predicts wind noise bounds in spherical wind-screens, extending previous methods into atmospheric turbulence source regions. Predictions for turbulence-turbulence interaction and stagnation pressure fluctuations show good agreement with measurements.
Area of Science:
- Acoustics
- Fluid Dynamics
- Atmospheric Science
Background:
- Previous work predicted wind noise bounds within the inertial range of turbulence.
- Limitations included restricted validity and non-optimized measurement conditions.
Purpose of the Study:
- Extend wind noise prediction models into the atmospheric turbulence source region.
- Compare predictions with measurements across various wind-screen sizes.
- Investigate turbulence-turbulence and mean shear-turbulence interaction spectra.
Main Methods:
- Calculated turbulence-turbulence interaction and stagnation pressure fluctuation spectra.
- Utilized a form fit to the velocity fluctuation spectrum.
- Compared predictions with measurements from large wind-screens and unscreened microphones.
Main Results:
- Turbulence-turbulence interaction predictions align well with large wind-screen measurements.
- Stagnation pressure fluctuation predictions match unscreened microphone data.
- Mean shear-turbulence interaction spectra were not consistently observed.
Conclusions:
- The extended model accurately predicts certain wind noise components.
- Discrepancies in mean shear-turbulence interaction warrant further investigation.
- The study validates wind noise prediction methods across different scales.
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