Some Aspects of Uncertainty in Computational Fluid Dynamics Results

[+] Author and Article Information
U. B. Mehta

NASA Ames Research Center, Moffett Field, Calif. 94035

J. Fluids Eng 113(4), 538-543 (Dec 01, 1991) (6 pages) doi:10.1115/1.2926512 History: Received March 19, 1990; Online May 23, 2008


Uncertainties are inherent in computational fluid dynamics (CFD). These uncertainties need to be systematically addressed and managed. Sources of these uncertainties are identified and some aspects of uncertainty analysis are discussed. Some recommendations are made for quantification of CFD uncertainties. A practical method of uncertainty analysis is based on sensitivity analysis. When CFD is used to design fluid dynamic systems, sensitivity-uncertainty analysis is essential.

Copyright © 1991 by The American Society of Mechanical Engineers
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