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本文利用数值模拟研究了浮力对湍流预混V形火焰平均速度场的影响,发现浮力效应主要体现在远场区域,而在火焰刷附近非常有限;利用落塔和OH-PLIF方法在正常重力和微重力下观测了火焰皱褶,发现浮力压制火焰皱褶的程度与湍流强度密切相关.分析表明斜压机理是浮力影响火焰皱褶的重要原因.

参考文献

[1] Aldredge R C;Williams F A .Influence of Wrinkled Premixed-Flame Dynamics on Large-scale,Low-intensity Turbulent Flow[J].Journal of Fluid Mechanics,1991,228:487-511.
[2] Sinibaldi JO.;Tulkki AE.;Driscoll JF.;Mueller CJ. .Suppression of flame wrinkling by buoyancy: The baroclinic stabilization mechanism[J].AIAA journal,1998(8):1432-1438.
[3] Libby P A .Theoretical Analysis of the Effect of Gravity on Premixed Turbulent Flames[J].Combustion Science and Technology,1989,68:15-33.
[4] Bédat B;Cheng R K .Effects of Buoyancy on Premixed Flame Stabilization[J].Combustion and Flame,1996,107:13-26.
[5] Cheng R K;Bédat B .Effects of Buoyancy on Lean Premixed V-flames Part Ⅰ: Laminar and Turbulent Flame Structures[J].Combustion and Flame,1999,116:360-375.
[6] 王岳,雷宇,张孝谦,J.K(o)nig,C.Eigenbrod.浮力对皱折锋面预混V形火焰的影响[J].燃烧科学与技术,2002(06):493-497.
[7] Peters,N.Laminar Flamelet Concepts in Turbulent Combustion[A].Pittsburgh:The Combustion Institute,1986:1231-1250.
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