Uncertainty Quantification for Production Navier-Stokes Solvers

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: NNX10CE79P
Agency Tracking Number: 094611
Amount: $99,991.00
Phase: Phase I
Program: SBIR
Solicitation Topic Code: A2.05
Solicitation Number: N/A
Solicitation Year: 2009
Award Year: 2010
Award Start Date (Proposal Award Date): 2010-01-29
Award End Date (Contract End Date): 2010-07-29
Small Business Information
6210 Keller's Church Road, Pipersville, PA, 18947-2010
DUNS: 929950012
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Peter Cavallo
 Principal Investigator
 (215) 766-1520
Business Contact
 Paula Schachter
Title: Business Official
Phone: (215) 766-1520
Email: schachte@craft-tech.com
Research Institution
Solution errors are inherent in any Computational Fluid Dynamics (CFD) simulation. Systematic identification, reduction, and control of these various error sources is crucial if the results of CFD simulations are to be trusted for design and performance assessment of air vehicles. While grid refinement studies may verify the spatial accuracy of a solution, these studies are generally laborious and time intensive. Continued development of a standalone Error Transport Equation (ETE) solver is proposed. The proposed program exploits an existing mesh adaptation and error quantification package, CRISP CFDREG, which currently interfaces with meshes and solutions from the NASA unstructured Navier-Stokes solvers FUN3D and USM3D. The Phase I effort will explore the use of ETE methodology with these production Navier-Stokes solvers as well as the popular structured grid code OVERFLOW. Improvements in error prediction for aerodynamic coefficients will be sought. In addition, the proposed program will address uncertainty quantification for turbulence models commonly used in computational aerodynamics applications. The ETE solver provides a promising, viable path for reliable error quantification and solution verification. This tool will provide numerical error bars, quantifiable levels of uncertainty in both local and globally integrated variables, for use in computational aerodynamics and other applications.

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

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