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

Suo Yang, Xingjian Wang, Vigor Yang, Wenting Sun

研究成果: Conference contribution

5 引文 斯高帕斯(Scopus)

摘要

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.

原文English
主出版物標題AIAA Aerospace Sciences Meeting
發行者American Institute of Aeronautics and Astronautics Inc, AIAA
版本210059
ISBN(列印)9781624105241
DOIs
出版狀態Published - 2018
事件AIAA Aerospace Sciences Meeting, 2018 - Kissimmee, United States
持續時間: 2018 一月 82018 一月 12

出版系列

名字AIAA Aerospace Sciences Meeting, 2018
號碼210059

Conference

ConferenceAIAA Aerospace Sciences Meeting, 2018
國家/地區United States
城市Kissimmee
期間18-01-0818-01-12

All Science Journal Classification (ASJC) codes

  • 航空工程

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