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Buffet and Dynamic Loads Analysis

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: FA9302-05-M-1019
Agency Tracking Number: F051-318-0733
Amount: $99,396.00
Phase: Phase I
Program: SBIR
Solicitation Topic Code: AF05-318
Solicitation Number: 2005.1
Solicitation Year: 2005
Award Year: 2005
Award Start Date (Proposal Award Date): 2005-05-10
Award End Date (Contract End Date): 2006-02-10
Small Business Information
566 Glenbrook Drive
Palo Alto, CA 94306
United States
DUNS: 172390481
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Thuan Lieu
 Research Scientist
 (650) 283-8401
Business Contact
 Charbel Farhat
Title: President
Phone: (650) 857-0532
Research Institution

CFD (Computational Fluid Dynamics)-based nonlinear computational aeroelasticity methods have been successfully demonstrated for the flutter analysis of complete aircraft configurations in subsonic, transonic, and supersonic airstreams, at low to moderate angles of attack, for clean wing configurations, and when viscous effects can be neglected. It is proposed to research and investigate the feasibility of two enabling computational technologies for expanding the scope of these methods to high-angle of attack, viscous aeroelastic applications such as buffeting. These two technologies are computationally efficient algorithms for updating dynamic CFD grids that are robust in the boundary layer and also viable for modeling the deployment of control surfaces, and time-accurate implementations of suitable turbulence models on moving grids. It is also proposed to identify pathways for integrating these computational technologies in comprehensive, CFD-based, transient, nonlinear aeroelastic codes.

* Information listed above is at the time of submission. *

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