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http://dx.doi.org/10.5916/jkosme.2011.35.1.082

Evaluation of Turbulent Flame Speed Model for Turbulent Premixed Combustion Flow around Bluff Body  

Park, Nam-Seob (유한대학 기계과)
Ko, Sang-Cheol (전주대학교 기계자동차공학과)
Publication Information
Journal of Advanced Marine Engineering and Technology / v.35, no.1, 2011 , pp. 82-88 More about this Journal
Abstract
The objective of this study is to investigate the validity of the dynamic sub-grid G-equation model to a complex turbulent premixed combustion such as bluff body stabilized turbulent premixed flames for the considering of the realistic engineering application. In this study, a new turbulent flame speed model, introduced by the sub-grid turbulent diffusivity and the flame thickness, is also proposed and is compared with an usual model using sub-grid turbulent intensity and with the experimental data. The calculated results can predict the velocity and temperature of the combustion flow in good agreement with the experiment data.
Keywords
Premixed combustion; Large eddy simulation; Dynamic sub-grid G-equation model; turbulent flame speed; Flame holder;
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