Accession Number:

ADD020442

Title:

Method for Reducing Flow Induced Vibration and Noise in Towed Arrays

Descriptive Note:

Patent application, filed 22 Mar 2010

Corporate Author:

DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s):

Report Date:

2010-03-22

Pagination or Media Count:

20.0

Abstract:

A method for reducing noise in a towed acoustic array includes providing a towed array having a length, diameter, frequency range and tow speed. The relationship between tension in the towed array and wall pressure fluctuation spectral levels is determined. Wall pressure fluctuation spectral levels are related to the noise in the array. An optimal towed array tension is calculated using the determined relationship. Tension is increased to the optimal towed array tension by either provided additional towed array hose or a drogue at the end of the towed array.

Subject Categories:

  • Marine Engineering
  • Fluid Mechanics
  • Acoustics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE