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

Konstantinos Ritos; Ioannis W. Kokkinakis; Dimitris Drikakis; S. Michael Spottswood

doi:10.1063/1.4979965

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

Konstantinos Ritos, Ioannis W. Kokkinakis, Dimitris Drikakis, S. Michael Spottswood

Department of Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

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.

Original language	English
Article number	46101
Journal	Physics of Fluids
Volume	29
Issue number	4
DOIs	https://doi.org/10.1063/1.4979965
Publication status	Published - 1 Apr 2017

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abstract = "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.",

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AB - 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.

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

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