ROTOR UNSTEADY AIRLOADS

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$495,000.00
Award Year:
1988
Program:
SBIR
Phase:
Phase II
Contract:
n/a
Award Id:
5168
Agency Tracking Number:
5168
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
P.o. Box 3073, Princeton, NJ, 08543
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
() -
Business Contact:
DR. ALAN J. BILANIN
INVESTIGATOR
() -
Research Institution:
n/a
Abstract
OVER THE PAST SEVERAL YEARS, UNDER GOVERNMENT AND COMMERCIALSUPPORT, CONTINUUM DYNAMICS, INC. HAS MADE SIGNIFICANT PROGRESS IN COMPUTING THE UNSTEADY WAKES OF FIXED- AND ROTARY-WING AIRCRAFT. THIS PROGRESS, FOR THE MOST PART, RESULTED FROM THE SUCCESSFUL DEVELOPMENT OF THE BASIC CURVEDVORTEX ELEMENT AS A FUNDAMENTAL WAKE ELEMENT BUILDING BLOCK AND A NOVEL GENERALIZED VORTICITY CONTOUR REPRESENTATION OF THE WAKE. IT NOW APPEARS THAT IT IS POSSIBLE AND PRACTICAL TO COMPUTE THE CONVECTIVE EVOLUTION OF A VORTEX WAKE IN FORWARD FLIGHT AND COUPLE THIS WAKE TO A BLADE DYNAMICS AND AERODYNAMICS MODEL SO THAT THE RELIABLE PREDICTION OF UNSTEADY ROTOR BLADE LOADING WOULD BE POSSIBLE. THE PHASE IRESEARCH EFFORT WOULD ASSESS THE PROMISE OF A NOVEL GENERALIZED VORTICITY CONTOUR WAKE REPRESENTATION TO FORM THE BASIS OF AN ADVANCED ROTOR AERODYNAMICS ANALYSIS FOR FORWARD FLIGHT.

* information listed above is at the time of submission.

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