Dynamic Sub-grid Scale G-방정식 모델에 의한 평행평판간 난류의 예 혼합 연소에 관한 대 와동 모사
Large eddy simulation of turbulent premixed flame with dynamic sub-grid scale G-equation model in turbulent channel flow
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Abstract
The laminar flame concept in turbulent reacting flow is considered applicable to many practical combustion systems. For turbulent premixed combustion under widely used flamelet concept, the flame surface is described as an infinitely thin propagating surface that such a propagating front can be represented as a level contour of a continuous function G. In this study, for the purpose of validating the LES of G-equation combustion model, LES of turbulent premixed combustion with dynamic SGS model of G-equation in turbulent channel flow are carried out. A constant density assumption is used. The predicted flame propagating speed is good agreement with the DNS result of G. Bruneaux et al.
참고문헌 (6)
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- "A dynamic subgrid scale eddy viscosity model", pp.1991~
- "Improved subgrid scale models for large eddy simulation"
- "Direct numerical simulation of passive scalar field in a turbulent channel flow", pp.114 598~606 (1992)