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Multifidelity Uncertainty Quantification of a Commercial Supersonic TransportThe objective of this work was to develop a multifidelity uncertainty quantification approach for efficient analysis of a commercial supersonic transport. An approach based on non-intrusive polynomial chaos was formulated in which a low-fidelity model could be corrected by any number of high-fidelity models. The formulation and methodology also allows for the addition of uncertainty sources not present in the lower fidelity models. To demonstrate the applicability of the multifidelity polynomial chaos approach, two model problems were explored. The first was supersonic airfoil with three levels of modeling fidelity, each capturing an additional level of physics. The second problem was a commercial supersonic transport. This model had three levels of fidelity that included two different modeling approaches and the addition of physics between the fidelity levels. Both problems illustrate the applicability and significant computational savings of the multifidelity polynomial chaos method.
Document ID
20200000593
Acquisition Source
Langley Research Center
Document Type
Conference Paper
External Source(s)
doi:10.2514/6.2018-2851
Authors
West, Thomas K., IV (NASA Langley Research Center Hampton, VA, United States)
Phillips, Ben D. (NASA Langley Research Center Hampton, VA, United States)
Date Acquired
January 30, 2020
Publication Date
June 25, 2018
Subject Category
Numerical Analysis
Report/Patent Number
NF1676L-28634
AIAA 2018-2851
Funding Number(s)
WBS: 110076.02.07.03.22
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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