FLUCTUATING PRESSURE LOADS DEFINITION FOR HYPERSONIC VEHICLE STRUCTURES

Award Information
Agency:
Department of Defense
Branch
Air Force
Amount:
$49,359.00
Award Year:
1990
Program:
SBIR
Phase:
Phase I
Contract:
n/a
Agency Tracking Number:
13053
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
Tech-quest
3315 Bob Wallace Ave - Ste 101, Huntsville, AL, 35805
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
Dr Henry G Lew
(215) 542-1200
Business Contact:
() -
Research Institution:
n/a
Abstract
A RESEARCH PROGRAM IS PROPOSED TO INVESTIGATE THE PREDICTION CAPABILITY FOR AEROACOUSTIC LOADS SUBJECT TO HYPERSONIC FLOW CONDITIONS. IN PARTICULAR, THIS INVESTIGATION WILL FOCUS ON HYPERSONIC FLOW STRUCTURES FEATURING CONTROL SURFACES THAT EXPERIENCE 2D AND 3D SHOCK/BOUNDARY LAYER INTERACTIONS. REGIONS SUBJECT TO THESE FLOW INTERACTIONS CONSIST OF INLETS (COWL) OF AIR BREATING SYSTEMS, BOW SHOCK/TAIL BOUNDARY LAYERS, VERTICAL/HORIZONTAL TAIL SHOCK/BOUNDARY LAYERS, WING HOCK/FUSELAGE BOUNDARY LAYER, AND RAMPS LEADING TO THE INLETS. AS A CONSEQUENCE OF THE LIMITED DATA BASE (M<3) AVAILABLE FOR THESE INTERACTIONS, A DETAILED INVESTIGATION IS PROPOSED THAT CONSISTS OF REVIEWING AEROACOUSTIC LITERATURE (BOTH CLASSIFIED/ UNCLASSIFIED), CRITIQUE TO PREDICTION TECHNIQUES RELATIVE TO FUNDAMENTAL PHYSICS AND SCALING LAWS, USE OF AEROACOUSTIC DATA (KNOWN TO THE AUTHORS AND EXISTING IN OUR LIBRARY) THAT ALLOWS FURTHER VALIDATION OF EXISTING PREDICTION TECHNIQUES (DEVELOPED BY THE PROPOSED TEAM) TOMACH 8, AND FINALLY TO RECOMMEND A FUNDAMENTAL EXPERIMENTAL PROGRAM TO EXTEND THE DATA BASE AS WELL AS ENHANCE PREDICTION TECHNIQUES.

* information listed above is at the time of submission.

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