Accession Number:

ADD014837

Title:

System for Reducing Drag and Noise of Underwater Vehicles.

Descriptive Note:

Patent, Filed 17 Feb 71, patented 29 Jan 91,

Corporate Author:

DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s):

Report Date:

1991-01-29

Pagination or Media Count:

5.0

Abstract:

A means and method for simultaneously reducing drag and noise of a high-speed underwater vehicle is provided. Water is admitted through a water intake scoop in the nose of the vehicle and a polymer powder-gas combination is injected into the water stream in the scoop. The water, polymer and gas are mixed in a mixing chamber into which the scoop empties and are ejected through a circumferential ejector disposed at the minimum pressure point.

Subject Categories:

  • Submarine Engineering
  • Fluid Mechanics
  • Acoustics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE