OVER THE PAST SEVERAL YEARS SIGNIFICANT INTEREST HAS BEEN GENERATED IN THREE-DIMENSIONAL FLOWFIELD ANALYSES OF LIFTING REENTRY VEHICLES.

Award Information
Agency:
Department of Defense
Branch:
Air Force
Amount:
$49,975.00
Award Year:
1985
Program:
SBIR
Phase:
Phase I
Contract:
N/A
Agency Tracking Number:
2111
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
Vra Inc
Po Box 50, Blacksburg, VA, 24060
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
N/A
Principal Investigator
 DR CLARK H LEWIS
 (703) 552-0769
Business Contact
Phone: () -
Research Institution
N/A
Abstract
OVER THE PAST SEVERAL YEARS SIGNIFICANT INTEREST HAS BEEN GENERATED IN THREE-DIMENSIONAL FLOWFIELD ANALYSES OF LIFTING REENTRY VEHICLES. THE PARABOLIZED NAVIER-STOKES (PNS) SCHEMES ARE ELLIPTIC IN THE CROSSFLOW DIRECTION AND CAN TREAT REGIONS OF CROSSFLOW SEPARATION. THE PRESENT NON-ITERATIVE AFWAL PNS SCHEME SUFFERS FROM QUITE A FEW LIMITATIONS AND RESTRICTIONS; HOWEVER, THE NEW FULLY-ITERATIVE PNS SCHEME OF BHUTTA AND LEWIS SUCCESSFULLY RESOLVES SEVERAL OF THE PROBLEMS INHERENT IN THE PRESENT NON-ITERATIVE AFWAL PNS SCHEME. IN PHASE I OF THE PROPOSED TWO-PHASE EFFORT, WE WILL EXTEND THE NONITERATIVE PERFECT-GAS AFWAL PNS SCHEME TO ACCURATELY PREDICT EQUILIBRIUM-AIR FLOWFIELDS AROUND REALISTIC REENTRY CONFIGURATIONS. IN PHASE II OF THIS EFFORT, WE PROPOSE TO EXTEND THE RECENT AXISYMMETRIC FULLY-ITERATIVE PERFECT-GAS PNS SCHEME TO BHUTTA AND LEWIS, AND PROVIDE THE AIR FORCE WITH THE CODE TO STUDY THREE-DIMENTIONAL PERFECTGAS/EQUILIBRIUM-AIR FLOWFIELD AROUND BALLISTIC AND LIFTING REENTRY VEHICLES.

* information listed above is at the time of submission.

Agency Micro-sites

US Flag An Official Website of the United States Government