Applicability of hybrid RANS/LES models in predicting separation onset of the AVT-183 diamond wing

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    Abstract

    This effort contributes to the understanding of hybrid RANS/LES turbulence model behavior for prediction of separation onset via an investigation of the accuracy and predictions of the SARC-DDES variant. The focus is not to interrogate the underlying assumptions of the turbulence model or flow solver employed, but to report the accuracy of flowfield and surface quantity predictions given the choices for grid topology, spatial and temporal resolution, and numerical schemes used. Grid convergence is shown to be difficult to demonstrate for flows of this type. Steady state SARC and unsteady SARC-DDES simulation results demonstrate utility for pre-test predictions, but fail to resolve relevant physics in some instances.

    Original languageEnglish
    Title of host publication53rd AIAA Aerospace Sciences Meeting
    PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
    ISBN (Print)9781624103438
    DOIs
    StatePublished - 2015
    Event53rd AIAA Aerospace Sciences Meeting, 2015 - Kissimmee, United States
    Duration: Jan 5 2015Jan 9 2015

    Publication series

    Name53rd AIAA Aerospace Sciences Meeting

    Conference

    Conference53rd AIAA Aerospace Sciences Meeting, 2015
    Country/TerritoryUnited States
    CityKissimmee
    Period01/5/1501/9/15

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