Turbulence modeling of high speed compressible flows

Shuai Shuai, Timothy J. Wray, Ramesh K. Agarwal

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

It is well known that the two-equation turbulence models were originally developed and applied to compute flows in subsonic and transonic regimes at relatively low Mach numbers. This paper employs a new temperature gradient correction to the eddy viscosity term in a two-equation k-ε turbulence model for computing flows at high Mach numbers. The accuracy of the improved k-ε model is assessed by computing the supersonic/hypersonic boundary layer flow over a flat plate and the jet flows from supersonic nozzles. The results of computations using the modified k-ε model are in better agreement with the available theoretical and numerical results, and experimental data compared to those obtained with the industry standard two-equation k-ε and SST k-ω models.

Original languageEnglish
Title of host publicationAIAA SciTech Forum - 55th AIAA Aerospace Sciences Meeting
PublisherAmerican Institute of Aeronautics and Astronautics Inc.
ISBN (Electronic)9781624104473
DOIs
StatePublished - 2017
Event55th AIAA Aerospace Sciences Meeting - Grapevine, United States
Duration: Jan 9 2017Jan 13 2017

Publication series

NameAIAA SciTech Forum - 55th AIAA Aerospace Sciences Meeting

Conference

Conference55th AIAA Aerospace Sciences Meeting
Country/TerritoryUnited States
CityGrapevine
Period01/9/1701/13/17

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