HYPERSONIC PROPULSION INLETS FOR NASP APPLICATIONS

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: N/A
Agency Tracking Number: 5186
Amount: $485,000.00
Phase: Phase II
Program: SBIR
Awards Year: 1988
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
Post Office Box 50, Blacksburg, VA, 24060
DUNS: N/A
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 () -
Business Contact
 DR. CLARK H. LEWIS
Title: INVESTIGATOR
Phone: () -
Research Institution
N/A
Abstract
OVER THE PAST SEVERAL YEARS, IT HAS BEEN CLEARLY DEMONSTRATED THAT DEVELOPMENT OF TRANSATMOSPHERIC VEHICLES, SUCH AS THE NATIONAL AEROSPACE PLANE (NASP), WILL BE NECESSARY FOR A SUCCESSFUL SPACE-DEFENSE SYSTEM. IT IS ACCEPTED THAT THE DESIGN AND ANALYSIS OF SUCH VEHICLES WILL RELY HEAVILY UPON A DATA BASE GENERATED USING CFD TECHNIQUES. ACCURATE PREDICTIONS OF THE FLOWFIELD/CHEMISTRYLEADING UP TO AND THROUGH THE HYPERSONIC PROPULSION INLET WILL BE ESSENTIAL FOR RELIABLE PERFORMANCE/EFFICIENCY/TRADE ANALYSES OF THE PROPULSION CYCLE. IN PHASE I OF THIS EFFORT, WE WILL DEVELOP A THREE-DIMENSIONAL NON-EQUILIBRIUM PNS SCHEME FOR PREDICTING THE EXTERNAL FLOW OVER TYPICAL NASP-TYPE CONFIGURATIONS. THIS WILL PROVIDE A RELIABLE PREDICTION OF THE FLOWFIELD/CHEMISTRY ENTERING THE PROPULSION INLET. THE BASIC SOLUTION ALGORITHM IS INHERENTLY STABLE AND DOES NOT REQUIRE ANY SUB-LAYER APPROXIMATION. IN PHASE II OF THE EFFORT WE WILL EXTEND THIS PNS SCHEME TO PREDICT AXIALLY ATTACHED THREE-DIMENSIONAL NONEQUILIBRIUM INTERNAL INLET FLOWS.

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

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