A priori analysis of the subfilter covariance fields in turbulent reacting lox–ch4 supercritical mixing layers

Umesh Unnikrishnan, Xingjian Wang, Joseph C. Oefelein, Vigor Yang

研究成果: Conference contribution

摘要

Two-dimensional direct numerical simulation of a reacting liquid-oxygen/methane mixing layer at supercritical conditions is performed, to investigate the performance of subfilter models for large eddy simulation. A priori analyses of the dynamic Smagorinsky and mixed models for computing the subfilter velocity-velocity and velocity-scalar covariances are carried out. The models are evaluated at different filter widths to assess their applicability at different grid resolutions. Subfilter scalar-scalar covariance terms and their relevance to modeling supercritical reacting flows are also emphasized.

原文English
主出版物標題AIAA Scitech 2019 Forum
發行者American Institute of Aeronautics and Astronautics Inc, AIAA
ISBN(列印)9781624105784
DOIs
出版狀態Published - 2019
事件AIAA Scitech Forum, 2019 - San Diego, United States
持續時間: 2019 一月 72019 一月 11

出版系列

名字AIAA Scitech 2019 Forum

Conference

ConferenceAIAA Scitech Forum, 2019
國家United States
城市San Diego
期間19-01-0719-01-11

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering

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