Translated Titles

Large-Eddy Simulation of Turbulent Combustion in a Model Combustor


顏應文(Ying-Wen Yan);趙堅行(Jian-Xing Zhao)

Key Words

航空、航天推進系統 ; 亞網格尺度燃燒模型 ; 大渦模擬 ; G方程小火焰模型 ; V型穩定器 ; 紊流化學反應流 ; aerospace propulsion system ; subgrid-scale combustion model ; Large-Eddy Simulation LES ; G-equation flamelet model ; V-gutter flame holder ; turbulent chemical reaction flow



Volume or Term/Year and Month of Publication

20卷1期(2005 / 02 / 01)

Page #

86 - 91

Content Language


Chinese Abstract


English Abstract

Two different subgrid-scale combustion models were used for the Large-Eddy Simulation (LES) of turbulent chemical reaction flows in a model combustor with V-gutter flame holder. The subgrid eddy viscosity was determined by using k-equation subgrid-scale (KSGS) model. To take into account the influence of heat radiation on wall temperature and gas temperature distributions, heat flux model was applied to predict heat flux distributions. The LES equations were solved with SIMPLE algorithm and hybrid scheme. Comparison of numerical results with experimental data shows that the two different subgrid-scale combustion models can all be used to simulate the combustion, but the G-equation flamelet model is better than the EBU subgrid combustion model. These results provide confidence that the LES may lead to a better under standing of the combustion process.

Topic Category 工程學 > 交通運輸工程