Large eddy simulation of turbulent premixed combustion flows over backward facing step

被引:0
|
作者
Nam Seob Park
Sang Cheol Ko
机构
[1] Yuhan University,Department of Mechanical Engineering
[2] Jeonju University,Department of Mechanical and Automotive Engineering
关键词
Large eddy simulation; Turbulent premixed flame; Dynamic sub-grid G-equation model; Backward facing step flow; Turbulent flame speed;
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学科分类号
摘要
Large eddy simulation (LES) of turbulent premixed combustion flows over backward facing step has been performed using a dynamic sub-grid G-equation flamelet model. A flamelet model for the premixed flame is combined with a dynamic sub-grid combustion model for the filtered propagation of flame speed. The objective of this study is to investigate the validity of the dynamic sub-grid G-equation model in a complex turbulent premixed combustion flow. For the purpose of validating the LES combustion model, the LES of isothermal and reacting shear layer formed at a backward facing step is carried out. The calculated results are compared with the experimental results, and a good agreement is obtained.
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页码:713 / 719
页数:6
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