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

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

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.

Original languageEnglish
Title of host publicationAIAA Scitech 2019 Forum
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
ISBN (Print)9781624105784
DOIs
Publication statusPublished - 2019
EventAIAA Scitech Forum, 2019 - San Diego, United States
Duration: 2019 Jan 72019 Jan 11

Publication series

NameAIAA Scitech 2019 Forum

Conference

ConferenceAIAA Scitech Forum, 2019
CountryUnited States
CitySan Diego
Period19-01-0719-01-11

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering

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