Accession Number:

AD0749113

Title:

Scattering by Water Waves Generated by a Moving Pressure Point

Descriptive Note:

Corporate Author:

OFFICE OF TELECOMMUNICATIONS BOULDER CO INST FOR TELECOMMUNICATION SCIENCES

Report Date:

1972-08-01

Pagination or Media Count:

22.0

Abstract:

An analysis for scattering of scalar waves in air by a wake on the surface of water is developed. The wake on the water surface is generated as a concentrated pressure point travels over the free water surface. The wake has characteristics resembling a diffraction grating. The grating produces maximum constructive interference resonance in the backscattered wave under certain conditions. At resonance the acoustic wavelength, water wavelength and angle of incident satisfy a simple geometrical condition.

Subject Categories:

  • Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE