| 中心突扩燃烧室PIV实验研究 |
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| 引用本文： | 李昊,林明,张玉山,沈继奎,陈春德.中心突扩燃烧室PIV实验研究[J].实验流体力学,2011(4). |
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| 作者姓名： | 李昊 林明 张玉山 沈继奎 陈春德 |
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| 作者单位： | 中国人民解放军91681部队; |
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| 摘 要： | 利用PIV技术对两种不同尺寸的中心突扩燃烧室在不同入口速度条件下的冷态流场进行了实验研究,测量并分析了流场结构与来流速度、突扩比、喷管收缩段等因素的关系。实验结果表明利用PIV技术能较好地获得高速条件下燃烧室二维速度场;对于不同突扩比的燃烧室,突扩面后的流场结构类似,但回流区的最大负速度与入口速度的比例关系不同;在喷管入口处,流场在此处重新形成旋涡,其直径较大,但强度相对较弱。
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| 关 键 词： | 中心突扩燃烧室 PIV 实验 |
Study on centeral-dump combustor by PIV |
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| LI Hao,LIN Ming,ZHANG Yu-shan,SHEN Ji-kui,CHEN Chun-de.Study on centeral-dump combustor by PIV[J].Experiments and Measur in Fluid Mechanics,2011(4). |
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| Authors: | LI Hao LIN Ming ZHANG Yu-shan SHEN Ji-kui CHEN Chun-de |
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| Institution: | LI Hao,LIN Ming,ZHANG Yu-shan,SHEN Ji-kui,CHEN Chun-de(PLA Unit No.91681,Ningbo Zhejiang 315731,China) |
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| Abstract: | Using particle imaging velocimetry(PIV) technology,gas cold flow field experiments are performed on conditions of different inlet velocities in two kinds of central-dump combustor.The relations are analyzed between flow structures and other factors,such as inflow velocity,expansion ratio,exhaust nozzle etc.Experiment shows 2-D velocity field of combustor can be obtained by means of PIV at high inlet velocity.For combustors of different expansion ratios,the field structures are similar,but the relations of t... |
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| Keywords: | central-dump combustor PIV experiment |
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