Improving Weapons Bay Acoustical Environments

Period of Performance: 07/02/2008 - 07/02/2010

$185K

Phase 2 SBIR

Recipient Firm

Digital Fusion
5030 Bradford DriveBuilding 1, Suite 210
Huntsville, AL 35805
Principal Investigator

Abstract

The ultimate aim of this program is to experimentally demonstrate the ability of a passive, light weight flow control device to successfully produce acceptable acoustic noise levels in the main cavity of the F/A-22 aircraft during a flight test. The Phase I effort performed both state of the art CFD analysis and complementary small-scale wind tunnel tests to assess the ability of a rod-in-crossflow (RIC) to perform this task in the subsonic and supersonic Mach number ranges. Phase II will build on these results and consist of analyses of both RIC and porous spoiler flow treatments on both subsonic and supersonic cavity flows.