| 黎开管非线热声效应的研究 |
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| 引用本文： | 邓凯,吴云飞,李华,方德明,钟英杰.黎开管非线热声效应的研究[J].声学学报,2011,36(1):37-42. |
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| 作者姓名： | 邓凯 吴云飞 李华 方德明 钟英杰 |
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| 作者单位： | 1. 浙江工业大学能源与动力工程研究所脉动技术工程研究中心,杭州,310014
2. 浙江工业大学化工机械设计研究所,杭州,310014 |
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| 基金项目： | 国家自然科学基金资助项目(50576087) |
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| 摘 要： | 基于能量守恒原理对Rijke管热声效应展开了理论分析,采用内外流场耦合法数值模拟了Rijke管自激励起振和饱和过程的声场特性,并开展了相应的实验研究.推导了Rijke管起振、饱和及高次谐波产生过程中的能量变化,分析了Rijke管非线性效应包括高次谐波和波形畸变的影响因素,提出了改变管口声阻抗可弱化非线性效应的方法.结果...
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| 关 键 词： | 热声转换 数值模拟 理论分析 速度振幅 非线性效应 波形畸变 热声效应 非线性畸变 平均流速 高次谐波 |
Investigation on nonlinear thermoacoustic effects of Rijke tube |
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| DENG Kai,WU Yunfei,LI Hua,FANG Deming,ZHONG Yingjie.Investigation on nonlinear thermoacoustic effects of Rijke tube[J].Acta Acustica,2011,36(1):37-42. |
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| Authors: | DENG Kai WU Yunfei LI Hua FANG Deming ZHONG Yingjie |
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| Institution: | DENG KAi~1 WU Yunfei~1 LI Hua~1 FANG Deming~2 ZHONG Yingjie~1 (1 Institute of Energy and Power Engineering,Zhejiang University of Technology Hangzhou 310014) (2 Institute of Processing Equipment and Control Engineering,Zhejiang University of Technology Hangzhou 310014) |
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| Abstract: | Based on the energy conservation,nonlinear thermoacoustic effects of Rijke tube including excited regime, saturation and higher harmonics were analyzed.The simulation method of the modeling with external flow field,which could couple the inner of a Rijke tube with its outer space was carried out to obtain the acoustic characteristics about the process of self-excited oscillation.The experiment research was also performed to validate the simulation and model result.The nonlinear parameters which influence th... |
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