한국연소학회:학술대회논문집
- 한국연소학회 2005년도 제31회 KOSCO SYMPOSIUM 논문집
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- Pages.198-203
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- 2005
난류 예혼합 화염장에 대한 수치 모델링
Numerical Modeling for Turbulent Premixed Flames
초록
The LES-based level-set flamelet model has been applied to analyze the turbulent propane/air premixed bluff-body flame with a highly wrinkled flame fronts. The present study has been motivated to investigate the interaction between the flame front and turbulent eddies. Special emphasis is given to study the effect of G equation filtering treatment on the precise structure of turbulent premixed flames as well as the effect of sub-grid scale (SGS) eddies on the wrinkling of the flame surface. The level-set/flamelet model has been adopted to account for the effect of turbulence-flame interaction as well as to properly capture the flame front. Numerical results indicate that the present LES-based level-set flamelet approach has a capability to realistically simulate the highly non-stationary turbulent premixed flame.