凹腔驻涡模型燃烧室内涡的演化发展

Vortexes evolvement and development in the model of trapped vortex combustor

School of Jet Propulsion, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

摘要: 使用大涡模拟对凹腔内双驻涡冷态流场进行了分析研究.结果发现, 在主流、前后壁面射流的情况下, 凹腔在某些特定几何条件下会产生准周期生成和破碎的驻涡, 同时研究了凹腔内准周期驻涡的生成发展的过程, 得到了影响凹腔内涡演化的新结果.
- 航空、航天推进系统 /
- 驻涡 /
- 凹腔 /
- 大涡模拟 /
- 稳焰
Abstract: The large-eddy simulation(LES) has been used to described the computational simulation of the dual vortexes.The results indicate that in the case of primary airflow, fore-cavity and back-cavity flow injection,the vortexes could create in the cavity for some geometry conditions.The progress of trapped vortex development in the cavity is also investigated,the new result that influences the evolvement of vortexes in the cavity is obtained.
- aerospace propulsion system /
- trapped vortex /
- cavity /
- large-eddy simulation(LES) /
- flame holder

[1]	Hsu K Y,Goss L P,Trump D D,et al.Performance of a trapped-vortex cvombustor[R].AIAA-95-0810.
[2]	Burrus D L,Johnson A W,Roquemore W M,et al.Performance assessment of a prototype trapped vortex combustor concept for gas turbine application[R].ASME 2001-GT-0087.
[3]	Maneilla P C,Chaka P,Aeharya S.Performance of a trapped vortex spray combustor[R].ASME 2001-GT 0058.
[4]	Katta V R,Roquemore W M.Study on trapped-vortex combustor-effect of injection on dynamics of non-reacting and reacting flows in a cavity[R].AIAA 97-3256.
[5]	Katta V R,Roquemore W M.Numerical studies on trapped-vortex concepts for stable combustion[J].Journal of Engineering for Gas Turbines and Power Transactions of the ASME,1998,120(1):60-68.
[6]	Komerath N M,Ahuja G K,Chambers F W.Prediction and measurement of flows over cavities[R].AIAA-87-0166.
[7]	Christopher S,Suresh M.Simulation of fuel-air mixing and combustion in a trapped-vortex combustor[R].AIAA 2000-0478.
[8]	樊未军,易琪,严明,等.驻涡燃烧室凹腔双涡结构研究[J].中国电机工程学报,2006,26(9):66-70.FAN Weijun,YI Qi,YAN Ming,et al.A study of double vortex structure in the trapped vortex combustor[J].Proceedings of the CSEE,2006,26(9):66-70.
[9]	樊未军,严明,易琪,等.富油/快速淬熄/贫油驻涡燃烧室低Nox排放[J].推进技术,2006,127(1):88-91.FAN Weijun,YAN Ming,YI Qi,et al.Low Nox emission of rich-burn,quick-mix,lean-burn trapped vortex combustor[J].Journal of Propulsion Technology,2006,127(1):88-91.