Investigation of subgrid scale wrinkling models and their impact on the Artificially Thickened Flame model in Large Eddy Simulations

被引：0

作者：

Broeckhoven, Tim ^{[1
]}

Freitag, Martin ^{[2
]}

Lacor, Chris ^{[1
]}

Sadiki, Amsini ^{[2
]}

Janicka, Johannes ^{[2
]}

机构：

[1] Vrije Univ Brussel VIB, Dept Engn Mech, Pleinlaan 2, B-1050 Brussels, Belgium

[2] Tech Univ Darmstadt, Energy & Powerplant Technol, D-4287 Darmstadt, Germany

来源：

COMPLEX EFFECTS IN LARGE EDDY SIMULATIONS | 2007年 / 56卷

关键词：

D O I：

暂无

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

In this contribution a Large Eddy Simulation together with the Artificially Thickened Flame approach is used to study a well known experimental set-up consisting of a rectangular dump combustor - ORACLES. The major drawback of artificially thickening the flame is that the interaction between turbulence and flame is altered. To compensate for the inability of small vortices to wrinkle the flame a subgrid scale wrinkling model has to be introduced. In this contribution the influence of the subgrid scale wrinkling on the flame front in a high Reynolds number flow is investigated. Moreover the influence of different approximations for the subgrid scale velocity on the prediction of the flow field and flame structure is studied.

引用

页码：353 / +

页数：4

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