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- Engineering applications for aircraft noise prediction contain models for physical phenomenon that enable solutions to be computed quickly. These models contain parameters that have an uncertainty not accounted for in the solution. To include uncertainty in the solution, nondeterministic computational methods are applied. Using prediction models for supersonic jet broadband shock-associated noise, fixed model parameters are replaced by probability distributions to illustrate one of these methods. The results show the impact of using nondeterministic parameters both on estimating the model output uncertainty and on the model spectral level prediction. In addition, a global sensitivity analysis is used to determine the influence of the model parameters on the output, and to identify the parameters with the least influence on model output.
- NASA Technical Reports Server (NTRS) Collection.
- Document ID: 20100036216.
AIAA Paper 2010-3841.
16th Aeroacoustics Conference; 7-9 Jun. 2010; Stockholm; Sweden.
- Copyright, Distribution as joint owner in the copyright.
View MARC record | catkey: 15993942