ALTITUDES

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: N/A
Agency Tracking Number: 1677
Amount: $49,946.00
Phase: Phase I
Program: SBIR
Awards Year: 1984
Solitcitation Year: N/A
Solitcitation Topic Code: N/A
Solitcitation Number: N/A
Small Business Information
Vra Inc.
P.o. Box 50, Blacksburg, VA, 24060
Duns: N/A
Hubzone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 CLARK H. LEWIS
 INVESTIGATOR
 () -
Business Contact
Phone: () -
Research Institution
N/A
Abstract
IN ORDER TO OPTIMIZE THE APPLICATION OF AEROASSIST CONCEPTS TO MANEUVERING RE-ENTRY VEHICLES, IT IS ESSENTIAL TO HAVE A SCHEME THAT CAN ACCURATELY AND SIMULTANEOUSLY PREDICT THE VEHICLE'S AERODYNAMIC FORCES AND MOMENTS, AS WELL AS THE CORRESPONDING SURFACE HEAT-TRANSFER RATES. PHASE I OF THIS EFFORT IS INTENDED TO DEVELOP A FULLY THREE-DIMENSIONAL NONEQUILIBRIUM PARABOLIZED NAVIER-STOKES SCHEME. THIS SCHEME WILL ACCURATELY PREDICT THE VISCOUS FORCES AND MOMENTS AROUND A LIFTING MANEUVERING-TYPE VEHICLE, AND WILL ALSO ACCURATELY PREDICT THE SURFACE HEAT-TRANSFER EFFECTS BY ACCOUNTING FOR SURFACE CATALYSIS EFFECTS. PHASE II OF THIS EFFORT WILL EXTEND THIS SCHEME TO INCLUDE RADIATION EFFECTS AND COUPLING WITH SIX DEGREE-OF-FREEDOM TRAJECTORY CALCULATIONS.

* information listed above is at the time of submission.

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