Uncertainty Quantification for Production Navier-Stokes Solvers

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$99,991.00
Award Year:
2010
Program:
SBIR
Phase:
Phase I
Contract:
NNX10CE79P
Award Id:
95537
Agency Tracking Number:
094611
Solicitation Year:
n/a
Solicitation Topic Code:
A2
Solicitation Number:
n/a
Small Business Information
6210 Keller's Church Road, Pipersville, PA, 18947
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
929950012
Principal Investigator:
Peter Cavallo
Principal Investigator
(215) 766-1520
cavallo@craft-tech.com
Business Contact:
Paula Schachter
Business Official
(215) 766-1520
schachte@craft-tech.com
Research Institution:
n/a
Abstract
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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