对美国Sandia国家实验室测量的甲烷-空气湍流射流火焰进行了三维大涡模拟(LES),其统计的时均量以及脉动量符合实验测量值,且和RANS代数二阶矩湍流燃烧模型模拟结果大致符合.LES统计得到的化学反应率系数脉动和甲烷浓度脉动的互关联与对应的时均量梯度的乘积分布趋势相同,大小幅值的位置也相对应,与二阶矩湍流燃烧模型的封闭假设相符,验证了二阶矩代数燃烧模型的合理性.
参考文献
| [1] | L.X. Zhou;F. Wang;J. Zhang .Simulation of swirling combustion and NO formation using a USM turbulence-chemistry model[J].Fuel,2003(13):1579-1586. |
| [2] | R. Mattsson;M. Kupiainen;P. Gren;A. Wahlin;T.E. Carlsson;C. Fureby .Pulsed TV holography and schlieren studies, and large eddy simulations of a turbulent jet diffusion flame[J].Combustion and Flame,2004(1/2):1-15. |
| [3] | DesJardin PE.;Frankel SH. .Large eddy simulation of a nonpremixed reacting jet: Application and assessment of subgrid-scale combustion models[J].Physics of fluids,1998(9):2298-2314. |
| [4] | Liyuan Hu,Lixing Zhou,Jian Zhang,Keren Wang.Large-eddy structures of turbulent swirling flows and methane-air swirling diffusion combustion[J].力学学报（英文版）,2005(05):419-424. |
| [5] | [OL].http://www.ca.sandia.gov/TNF/pilotedjet.html,2003. |
| [6] | Westbrook C K;Dryer F L .Simplified Reaction Mechanisms for the Oxidation of Hydrocarbon Fuels in Flames[J].Combustion Science and Technology,1981,27(1-2):31-43. |
| [7] | FLUENT 6.1,User's Manual[M].FLUENT Inc,2003 |
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