Large eddy simulation of turbulent premixed piloted flame using artificial thickened flame model coupled with tabulated chemistry
查看参考文献24篇
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文摘
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A sub-grid scale (SGS) combustion model, which combines the artificial thickened flame (ATF) model with the flamelet generated manifold (FGM) tabulation method, is proposed. Based on the analysis of laminar flame structures, two self-contained flame sensors are used to track the diffusion and reaction processes with different spatial scales in the flame front, respectively. The dynamic formulation for the proposed SGS combustion model is also performed. Large eddy simulations (LESs) of Bunsen flame F3 are used to evaluate the different SGS combustion models. The results show that the proposed SGS model has the ability in predicting the distributions of temperature and velocity reasonably, while the predictions for the distributions of some species need further improvement. The snapshots of instantaneous normalized progress variables reveal that the flame is more remarkably and severely wrinkled at the flame tip for flame F3. More satisfactory results obtained by the dynamic model indicate that it can preserve the premixed flame propagation characteristics better. |
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来源
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Applied Mathematics and Mechanics
,2018,39(9):1277-1294 【核心库】
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DOI
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10.1007/s10483-018-2370-9
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关键词
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large eddy simulation (LES)
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artificial thickened flame model
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tabulation
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dynamic modeling
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flame sensor
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地址
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1.
Department of Thermal Science and Energy Engineering, University of Science and Technology of China, Hefei, 230027
2.
Shenyang Engine Research Institute, Aero Engine (Group) Corporation of China, Shenyang, 110015
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语种
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英文 |
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文献类型
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研究性论文 |
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ISSN
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0253-4827 |
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学科
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力学 |
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基金
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国家自然科学基金
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文献收藏号
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CSCD:6322048
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