ALTITUDES

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$49,946.00
Award Year:
1984
Program:
SBIR
Phase:
Phase I
Contract:
n/a
Agency Tracking Number:
1677
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
Vra Inc.
P.o. Box 50, Blacksburg, VA, 24060
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
CLARK H. LEWIS
INVESTIGATOR
() -
Business Contact:
() -
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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