Implicit large eddy simulation of acoustic loading in supersonic turbulent boundary layers

This paper investigates the accuracy of implicit large eddy simulation in the prediction of acoustic phenomena associated with pressure fluctuations within a supersonic turbulent boundary layer. We assess the accuracy of implicit large eddy simulation against direct numerical simulation and experime...

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Bibliographic Details
Published in:Physics of fluids (1994) 2017-04, Vol.29 (4)
Main Authors: Ritos, Konstantinos, Kokkinakis, Ioannis W., Drikakis, Dimitris, Spottswood, S. Michael
Format: Article
Language:English
Subjects:
Acoustics
Boundary layer
Computational fluid dynamics
Computer simulation
Direct numerical simulation
Fluid dynamics
Large eddy simulation
Mathematical models
Physics
Simulation
Supersonic flow
Turbulent boundary layer
Turbulent flow
Variation
Vortices
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Summary:This paper investigates the accuracy of implicit large eddy simulation in the prediction of acoustic phenomena associated with pressure fluctuations within a supersonic turbulent boundary layer. We assess the accuracy of implicit large eddy simulation against direct numerical simulation and experiments for attached turbulent supersonic flow with zero-pressure gradient, and further analyze and discuss the effects of turbulent boundary layer pressure fluctuations on acoustic loading both at the high and low frequency regimes. The results of high-order variants of the simulations show good agreement with theoretical models, experiments, as well as previously published direct numerical simulations.
ISSN:1070-6631
1089-7666
DOI:10.1063/1.4979965