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A COMPUTATIONAL MODEL FOR THRUST REVERSING AND VECTORED JETS

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: N/A
Agency Tracking Number: 8912
Amount: $182,533.00
Phase: Phase II
Program: SBIR
Solicitation Topic Code: N/A
Solicitation Number: N/A
Timeline
Solicitation Year: N/A
Award Year: 1990
Award Start Date (Proposal Award Date): N/A
Award End Date (Contract End Date): N/A
Small Business Information
510 Clyde Ave
Mountain View, CA 94043
United States
DUNS: N/A
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Robert E Childs
 (415) 968-9457
Business Contact
Phone: () -
Research Institution
N/A
Abstract

BECAUSE OF RECENTLY DEFINED TACTICAL THREATS IT IS DESIRABLE TO IMPROVE THE MANEUVERABILITY AND TAKE-OFF/LANDING ASPECTS OF AIRCRAFT PERFORMANCE. IT HAS BEEN DETERMINED THAT SUCH IMPROVEMENTS CAN BE ACCOMPLISHED BY THE USE OF THRUST REVERSERS OR VECTORED JETS. IN ORDER TO DESIGN AIRCRAFT SATISFACTORILY IT IS NECESSARY TO HAVE A PREDICTION METHOD THAT IS SUFFICIENTLY ACCURATE. THE MOST DIFFICULT FLIGHT REGIME TO PREDICT ACCURATELY IS THE LANDING CONFIGURATION WHEN THERE ARE HOT GAS JETS IMPINGED ON THE GROUND CAUSING COMPLEX AERODYNAMIC PHENOMENA THAT CAN CRITICALLY AFFECT STABILITY AND CONTROL OF THE AIRCRAFT. PREVIOUS RESEARCH HAS INDICATED THAT ACCURATE MODELING OF THE TURBULENCE IN THE FLOW IS CRITICAL. THIS PROPOSAL IS CONCERNED IN PHASE I WITH IDENTIFYING THOSE AREAS WHERE EXISTING TURBULENCE MODELS ARE INADEQUATE AND ASSESSING THE IMPORTANCE OF THESE AREAS TO THE ACCURATE PREDICTION OF THE AIRCRAFT STABILITY AND CONTROL.

* Information listed above is at the time of submission. *

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