Numerical Study on Acoustic Radiation Characteristics in Power Boiler Tube Arrays

doi:10.19596/j.cnki.1001-246x.7757

CHINESE JOURNAL OF COMPUTATIONAL PHYSICS ›› 2018, Vol. 35 ›› Issue (6): 693-701.DOI: 10.19596/j.cnki.1001-246x.7757

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Numerical Study on Acoustic Radiation Characteristics in Power Boiler Tube Arrays

LIU Yuechao^1,2, JIANG Genshan², XU Weilong¹, KONG Qian²

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

Received:2017-09-08 Revised:2017-12-14 Online:2018-11-25 Published:2018-11-25

Abstract

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.

Key words: tube array, phononic crystal, acoustic radiation, band-gap structure

CLC Number:

O422.6

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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Numerical Study on Acoustic Radiation Characteristics in Power Boiler Tube Arrays

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