| 突扩燃烧室水流试验研究 |
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| 引用本文： | 李昊,于胜春,赵汝岩,张波,李高春.突扩燃烧室水流试验研究[J].实验流体力学,2008,22(4). |
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| 作者姓名： | 李昊 于胜春 赵汝岩 张波 李高春 |
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| 作者单位： | 海军航空工程学院飞行器工程系,山东,烟台,264001 |
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| 摘 要： | 对两种类型3种结构的突扩燃烧室分别进行了可视化水流模拟试验。试验结果表明,在剪切层中出现明显的旋涡结构,旋涡的产生、发展、脱落、破碎影响着燃烧室的流动状态;中心突扩燃烧室的流动状态与突扩比密切相关;在两侧突扩燃烧室中,由于两股流体的冲撞作用,导致流体周期性摆动,并在两侧卷起相对有规律的涡对,流动具有明显的低频振荡特征。
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| 关 键 词： | 突扩燃烧室 水流试验 振荡燃烧 |
Hydraulic experimental investigation of dump combustor |
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| LI Hao,YU Sheng-chun,ZHAO Ru-yan,ZHANG Bo,LI Gao-chun.Hydraulic experimental investigation of dump combustor[J].Experiments and Measur in Fluid Mechanics,2008,22(4). |
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| Authors: | LI Hao YU Sheng-chun ZHAO Ru-yan ZHANG Bo LI Gao-chun |
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| Abstract: | Hydraulic experiment were performed with an optical method in two kinds of dump combustor.From experiment,vortex structure is found in shear layer,its formation,evolution,shedding and breakup affects flow state of the combustor.Flow state of center-dump combustor is correlative with expansion ratio.In side-dump combustor,the impingement of two jets results in flow periodical swing and a pair of vortex curls up in two sides of combustor.This flow has the characteristic of low frequency oscillation. |
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| Keywords: | dump combustor hydraulic experiment combustion oscillation |
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