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RAREFIED GAS AERODYNAMIC BRIDGING PROCEDURES

Award Information

Agency:
National Aeronautics and Space Administration
Branch:
N/A
Award ID:
6782
Program Year/Program:
1989 / SBIR
Agency Tracking Number:
6782
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
Remtech Inc.
3304-B Westmill Dr Huntsville, AL 35805
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 2
Fiscal Year: 1989
Title: RAREFIED GAS AERODYNAMIC BRIDGING PROCEDURES
Agency: NASA
Contract: N/A
Award Amount: $490,710.00
 

Abstract:

THE NEXT GENERATION OF SPACEFLIGHT VEHICLES, SUCH AS THE AFECURRENTLY BEING DESIGNED, WILL REQUIRE MORE PRECISE PREDICTIONS OF THE VEHICLE AERODYNAMICS IN THE TRANSITIONAL FLOW REGIME THAN WAS ACHIEVED WITH THE SPACE TRANSPORTATION SYSTEM. THIS IS NECESSITATED BY THE NEED TO REDUCE ONBOARD GUIDANCE AND CONTROL CONSUMABLES IN FAVOR OF INCREASED PAYLOAD. THE OBJECTIVES OF THE PHASE I STUDY IS TO REVISIT THE BRIDGING TECHNIQUES AND FORMULAS USED TO CONNECTTHE CONTINUUM WITH THE FREE-MOLECULAR FLOW REGIME IN PREDICTING THE AERODYNAMIC CHARACTERISTICS OF VEHICLES DESIGNED TO FLY IN THE RAREFIED GAS REGIME, TO IDENTIFY THE SUITABLE CORRELATION PARAMETERS AND BRIDGING TECHNIQUES, TO ANALYZE AND COMPARE THESE PARAMETERS WITH AVAILABLE EXPERIMENTAL DATA AND COMPUTER CODES, LOOKING AT POSSIBLY A MORE FLEXIBLE METHOD OF LOCAL CORRELATION, PROVIDING A MORE FLEXIBLE MEANS OF CONDUCTING CONFIGURATION SENSITIVITY STUDIES, AND FINALLY TO RECOMMEND IMPROVED PROCEDURES FOR THE APPLICATION OF THE BRIDGING TECHNIQUES. IMPLEMENTATION OF THESE IMPROVED PROCEDURES INTO AVAILABLE CODES AND DESIGNTOOLS, THEIR VERIFICATION AND DOCUMENTATION WOULD THEN BE ACCOMPLISHED IN A PROPOSED PHASE II STUDY.

Principal Investigator:

E C Knox

Business Contact:

Small Business Information at Submission:

Remtech Inc.
3304 Westmill Dr Huntsville, AL 35805

EIN/Tax ID:
DUNS: N/A
Number of Employees: N/A
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No