| 炉内管阵列中声源辐射特性数值研究 |
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| 引用本文： | 刘月超,姜根山,许伟龙,孔倩.炉内管阵列中声源辐射特性数值研究[J].计算物理,2018,35(6):693-701. |
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| 作者姓名： | 刘月超 姜根山 许伟龙 孔倩 |
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| 作者单位： | 1. 华北电力大学 能源动力与机械工程学院, 北京 102206;2. 华北电力大学 数理学院, 河北 保定 071003 |
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| 基金项目： | 国家自然基金（11674093，11474091，11274111）；中国科学院声学研究所声场声信息国家重点实验室（SKLA201808）；中央高校基本科研业务费专项资金（2017XS138）资助项目 |
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| 摘 要： | 炉内换热器结构类似于声子晶体，基于声子晶体理论，采用数值计算与软件模拟得到管阵列中声源不同方向的声传播特性，并将两种方法所得结果进行对比分析，研究声源在管阵列中不同位置处的辐射特性.结果表明：声指向性特性与声源通过管排数量，声源频率是否处在声波禁带有关.
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| 关 键 词： | 管阵列 声子晶体 声辐射 带隙结构 |
| 收稿时间： | 2017-09-08 |
| 修稿时间： | 2017-12-14 |
Numerical Study on Acoustic Radiation Characteristics in Power Boiler Tube Arrays |
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| LIU Yuechao,JIANG Genshan,XU Weilong,KONG Qian.Numerical Study on Acoustic Radiation Characteristics in Power Boiler Tube Arrays[J].Chinese Journal of Computational Physics,2018,35(6):693-701. |
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| Authors: | LIU Yuechao JIANG Genshan XU Weilong KONG Qian |
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| Institution: | 1. School of Energy Power and Mechanical Engineering, North China Electric Power University, Beijing 102206, China;2. School of Mathematics and Physics, North China Electric Power University, Baoding 071003, China |
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| Abstract: | Based on study of sound propagation characteristics in periodic tube array, we investigate acoustic radiation characteristics in power station tube arrays. The heat exchanger structure in boiler is similar to phononic crystal. Different location in tube arrays acoustic radiation characteristics is studied. It shows that acoustic radiation directivity not only have relation with tube row number, but also have relation with frequency in acoustic band gap. |
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| Keywords: | tube array phononic crystal acoustic radiation band-gap structure |
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