Accession Number : ADD018542

Title :   Drag Reduction Polymer Ejection System for Underwater Vehicle.

Descriptive Note : Patent, Filed 16 Jan 96, patented 15 Apr 97,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Nedderman, William H ; Meunier, Robert ; Bissonnette, Laurent C

Report Date : 15 Apr 1997

Pagination or Media Count : 8

Abstract : A boundary layer polymer reservoir has bladder type side walls and is supported in a chamber in a vehicle that can be filled with sea water under pressure to provide external forces on the reservoir to eject the polymer through ports in the nose of the vehicle. The vehicle is a buoyant test vehicle that is drawn downwardly to a depth that produces a predetermined pressure in the chamber. The reservoir is elliptical with a support ring to which the elliptical side walls are peripherally attached, and which is itself attached to rails inside the vehicle.

Descriptors :   *UNDERWATER VEHICLES, *BOUNDARY LAYER, POLYMERS, RAILS, TEST VEHICLES, WALLS, RINGS, SEA WATER, NOSES, RESERVOIRS, BUOYANCY, ELLIPSES, BLADDERS

Subject Categories : Submarine Engineering
      Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE