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DYNAMIC STALL CONTROL

Award Information

Agency:
Department of Defense
Branch:
Army
Award ID:
12422
Program Year/Program:
1992 / SBIR
Agency Tracking Number:
12422
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
Ecodynamics Research Associate
P.O. Box 9229 Albuquerque, NM 87119
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 2
Fiscal Year: 1992
Title: DYNAMIC STALL CONTROL
Agency / Branch: DOD / ARMY
Contract: N/A
Award Amount: $399,785.00
 

Abstract:

COMPUTATIONAL ALGORITHMS AND CODE WILL BE DEVELOPED FOR CALCULATING UNSTEADY COMPRESIBLE 3-D VISCOUS FLOW AND RETREATING-BLADE DYNAMIC STALL ON MODERN HIGH-PERFORMANCE HELIOPTER ROTORS. THE ALGORITHM DEVELOPMENT WILL START FROM AN EXISTING 3-D TIME DEPENDENT VISCOUS COMPRESSIBLE CODE ALREADY USED SUCCESSFULLY TO CALCULATE PERIODIC PITCHING OF A SWEPT WING SECTION MOUNTED IN A WIND TUNNEL TEST SECTION. THE CODE USES AN APPROXIMATE FACTORIZATION (AF) ALGORITHM (INCLUDING CROSS DERIVATIVE TERMS) IN A MOVING BOUNDARY FITTED CORDINATE SYSTEM WITH SOLUTION ADAPTIVE GRID GENERATION ALGORITHMS, AND IS HIGHLY VECTORIZED FOR THE CRAY-2. THE NEW CODE WILL INCLUDE THE MORE DIFFICULT GEOMETRY DESCRIPTION OF A FINITE SPAN WING, AND TURBULENCE MODELING FOR STRONGLY SEPARATED FLOWS INCLUDING CENTRIFUGAL FORCES. THE PHASE II CODE WILL ALSO BE APPLICABLE TO COMPLEX MOTIONS AND TO FULLY COUPLED AEROELASTICITY CALCULATIONS.

Principal Investigator:

Dr Patrick J Roache
5058437445

Business Contact:

Small Business Information at Submission:

Ecodynamics Research Associate
Po Box 8172 Albuquerque, NM 87198

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