Comparison of finite-rate chemistry and flamelet/progress-variable models II: Sandia Flame E

Suo Yang, Xingjian Wang, Vigor Yang, Wenting Sun

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

5 Citations (Scopus)


In this study, simulations using both the finite-rate chemistry (FRC)-LES and the flamelet/progress-variable (FPV)-LES approaches are conducted for a piloted partially premixed methane/air flame with high turbulence intensity. The two models have different spatial distributions of both time-averaged quantities and instantaneous flame field. For both axial and radial profiles of time-averaged statistics, the FPV-LES approach provides overall better prediction than FRC-LES, primarily due to the unity effective Lewis number under high turbulence intensity. To properly apply FRC in LES, a better transport model covering a broad range of turbulence intensity is required. In contrast, for conditional statistics, in which the effects of transport modeling are largely removed, the FRC-LES approach provides overall better predictions than FPV-LES for all quantities at most locations and mixture fractions.

Original languageEnglish
Title of host publicationAIAA Aerospace Sciences Meeting
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
ISBN (Print)9781624105241
Publication statusPublished - 2018
EventAIAA Aerospace Sciences Meeting, 2018 - Kissimmee, United States
Duration: 2018 Jan 82018 Jan 12

Publication series

NameAIAA Aerospace Sciences Meeting, 2018


ConferenceAIAA Aerospace Sciences Meeting, 2018
CountryUnited States

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering

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