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A NOVEL POTENTIAL/VISCOUS FLOW COUPLING TECHNIQUE FOR COMPUTING HELICOPTER FLOW…

Award Information

Agency:
National Aeronautics and Space Administration
Branch:
N/A
Award ID:
10396
Program Year/Program:
1990 / SBIR
Agency Tracking Number:
10396
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
AMERICAN STEM CELL, INC.
135 CHINQUAPIN AVE CARLSBAD, CA 92008-6277
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Woman-Owned: Yes
Minority-Owned: No
HUBZone-Owned: No
 
Phase 2
Fiscal Year: 1990
Title: A NOVEL POTENTIAL/VISCOUS FLOW COUPLING TECHNIQUE FOR COMPUTING HELICOPTER FLOW FIELDS
Agency: NASA
Contract: N/A
Award Amount: $1,492,497.00
 

Abstract:

BECAUSE OF THE COMPLEXITY OF THE HELICOPTER FLOW FIELD, A ZONAL METHOD OF ANALYSIS OF COMPUTATIONAL AERODYNAMICS IS REQUIRED. IN THIS RESEARCH, A NEW PROCEDURE FOR COUPLING POTENTIAL AND VISCOUS FLOW CALCULATION SCHEMES IS PROPOSED. AN OVER-LAPPING, VELOCITY-COUPLING TECHNIQUE IS TO BE DEVELOPED WITH THE UNIQUE FEATURE THAT THE POTENTIAL FLOW SURFACE SINGULARITY STRENGTHS ARE OBTAINED DIRECTLY FROM THE NAVIER-STOKES SOLUTION AT A SMOOTHER INNER FLUID BOUNDARY. THE CLOSED-LOOP INTERATION METHOD PROCEEDS UNTIL THE VELOCITY FIELD IS CONVERGED. THIS COUPLING SHOULD PROVIDE THE MEANS OF MORE ACCURATE VISCOUS COMPUTATIONS OF THE NEAR-BODY AND ROTOR FLOW FIELDS WITH RESULTANT IMPROVED ANALYSIS OF SUCH IMPORTANT PERFORMANCE PARAMETERS AS HELICOPTER FUSELAGE DRAG AND ROTOR AIRLOADS.

Principal Investigator:

Dr J Michael Summa

Business Contact:

Small Business Information at Submission:

Analytical Methods Inc.
2133-152nd Ave Ne Redmond, WA 98052

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