Sensitivity Analysis and Error Control for Computational Aeroelasticity

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$99,832.00
Award Year:
2007
Program:
SBIR
Phase:
Phase I
Contract:
NNL07AA80P
Award Id:
83894
Agency Tracking Number:
066583
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
1582 Inca, Laramie, WY, 82072
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
106823607
Principal Investigator:
Dimitri Mavriplis
Principal Investigator
(307) 766-2868
mavripl@infionline.net
Business Contact:
Dimitri Mavriplis
Business Official
(307) 766-2868
mavripl@infionline.net
Research Institute:
n/a
Abstract
The objective of this proposal is the development of a next-generation computational aeroelasticity code, suitable for real-world complex geometries, and incorporating error-control for superior reliability and efficiency, and sensitivity analysis for aeroelastic design problems. The principal enabling innovation for achieving these goals involves the development of adjoint methods for time-dependent coupled aeroelastic simulations. The use of adjoint techniques has become widespread for steady-state aerodynamic design, and the potential of adjoint methods for controlling spatial error has been well documented. However, the extension of these methods to unsteady problems and coupled aero-structural problems has generally been lacking. Using a consistent and modular adjoint formulation, the proposed project will result in the incorporation of an adjoint methodology into an existing three-dimensional unstructured mesh aeroelastic simulation capability. The adjoint methodology will enable revolutionary advances in efficiency and reliability for computational aeroelasticity, by providing the means of controlling temporal error through time-step control for relevant engineering outputs, such as the determination of flutter boundaries. Sensitivity analysis will also be enabled, providing the means for performing aerodynamic shape optimization, structural modifications, as well as valuable information for guiding the placement, location and properties of flow control devices, actuators, and smart material technologies.

* 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