Accession Number : ADD016423

Title :   Corner Vortex Suppressor.

Descriptive Note : Patent, Filed 22 Feb 93, patented 19 Apr 94,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Bandyopadhyay, Promode R

Report Date : 19 Apr 1994

Pagination or Media Count : 6

Abstract : A corner vortex forms at the corners of a square or rectangular wind tunnel or water tunnel and disrupts the flow and creates excessive drag, turbulence, noise and wake. The corners defined by a wing/fuselage interface creates the same type of situation. The suppressor provides many small corners to prevent forming of the single large vortex. A honeycomb or mesh provides parallel passageways, each having a size that is a fraction (1/5th to 1/lOth) of the depth of the boundary layer (defined as that point in the fluid flow where the velocity is 99% of free stream velocity

Descriptors :   *VORTEX SHEDDING, BOUNDARY LAYER, DEPTH, DRAG, CROSS FLOW, DOWNSTREAM FLOW, FREE STREAM, FUSELAGES, SUPPRESSION, GAS SURFACE INTERACTIONS, WING BODY CONFIGURATIONS, MESH, TURBULENCE, PATENTS, VELOCITY, WAKE, WATER TUNNELS, WIND TUNNELS

Subject Categories : Aerodynamics
      Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE