System for Reducing Drag and Noise of Underwater Vehicles.
Patent, Filed 17 Feb 71, patented 29 Jan 91,
DEPARTMENT OF THE NAVY WASHINGTON DC
Pagination or Media Count:
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.
- Submarine Engineering
- Fluid Mechanics