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Prediction of unsteady characteristics of shock-separated turbulent flow using DDES methodology

  • Beihang University

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

Abstract

Delayed detached eddy simulations (DDES) of the supersonic cavity-ramp flow have been carried out with different numerical schemes (WENO and Roe). Computational results are compared to experimental data and the discrepancies of simulation results between WENO scheme and Roe scheme are discussed. The calculated mean and root mean square (RMS) wall pressure results show reasonable agreement with experimental data, which certify the capability of DDES method to predict wall pressure fluctuations accurately in supersonic compressible flow. DDES results of RMS mass flux profiles are also compared with experimental data. Besides, some experimentally observed unsteady flow features are also founded in the simulation.

Original languageEnglish
Title of host publication2018 Fluid Dynamics Conference
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
ISBN (Print)9781624105531
DOIs
StatePublished - 2018
Event48th AIAA Fluid Dynamics Conference, 2018 - Atlanta, United States
Duration: 25 Jun 201829 Jun 2018

Publication series

Name2018 Fluid Dynamics Conference

Conference

Conference48th AIAA Fluid Dynamics Conference, 2018
Country/TerritoryUnited States
CityAtlanta
Period25/06/1829/06/18

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