Fast Lifting Surface Models for Rotorcraft Analysis

Award Information
Agency:
Department of Defense
Branch
n/a
Amount:
$729,980.00
Award Year:
2012
Program:
SBIR
Phase:
Phase II
Contract:
W911W6-12-C-0013
Award Id:
n/a
Agency Tracking Number:
A2-4838
Solicitation Year:
2010
Solicitation Topic Code:
A10-148
Solicitation Number:
2010.3
Small Business Information
Continuum Dynamics, Inc. (Currently CONTINUUM DYNAMICS INC)
34 Lexington Avenue, Ewing, NJ, -
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
096857313
Principal Investigator:
Daniel Wachspress
Senior Associate
(609) 538-0444
dan@continuum-dynamics.com
Business Contact:
Barbara Agans
Director, Business Admini
(609) 538-0444
barbara@continuum-dynamics.com
Research Institution:
Stub




Abstract
Current comprehensive rotorcraft analyses typically use lifting line theories coupled with 2D look-up tables to determine rotor blade lift, drag and pitching moment. These methods cannot directly capture 3D flow effects that influence the aerodynamic characteristics of advanced planforms, complex tip-shapes and low aspect ratio wing/tail surfaces. CFD codes have been coupled to comprehensive codes to provide this capability, but these coupled solutions are too computationally expensive for daily design work. The Phase I effort demonstrated the potential of lifting surface blade models to partially bridge the gap between lifting line models and full CFD solutions without excessive increase in computation time. The lifting surface model developed in Phase I was shown to better predict lift, drag and pitching moment than lifting line models near the tip of the blade and where strong blade-vortex interactions occurred. The proposed Phase II effort would further enhance and accelerate this lifting surface blade model and then provide comprehensive documentation of its effectiveness in modeling fixed and rotating wings in both steady and unsteady flow. The new lifting surface blade model would then be implemented, demonstrated and delivered as a new option within the U.S. Army"s Rotorcraft Comprehensive Analysis System (RCAS).

* information listed above is at the time of submission.

Agency Micro-sites


SBA logo

Department of Agriculture logo

Department of Commerce logo

Department of Defense logo

Department of Education logo

Department of Energy logo

Department of Health and Human Services logo

Department of Homeland Security logo

Department of Transportation logo

Enviromental Protection Agency logo

National Aeronautics and Space Administration logo

National Science Foundation logo
US Flag An Official Website of the United States Government