节流板孔直径及流量对核级管道流致噪声的影响

doi:10.12068/j.issn.1005-3026.2020.08.013

东北大学学报:自然科学版 ›› 2020, Vol. 41 ›› Issue (8): 1140-1147.DOI: 10.12068/j.issn.1005-3026.2020.08.013

节流板孔直径及流量对核级管道流致噪声的影响

谢翌¹，奚冬¹，刘建²，刘帅²

(1.重庆大学汽车工程学院，重庆400044； 2.核反应堆系统设计技术重点实验室，四川成都610041)

收稿日期:2019-11-05 修回日期:2019-11-05 出版日期:2020-08-15 发布日期:2020-08-28
通讯作者: 谢翌
作者简介:两个以上作者简介中间加“；空格”谢翌(1983-)，男，重庆人，重庆大学副教授.
基金资助:
国家自然科学基金资助项目(51606180)；核反应堆系统设计技术重点实验室基金资助项目(HT-KFKT-02-2017004).

Influence of the Throttling Plate Hole Diameter and Flow Rate on the Flow-Induced Noise for Nuclear Level Pipeline

XIE Yi¹， Xi Dong¹， LIU Jian²， LIU Shuai²

1.School of Automotive Engineering， Chongqing University， Chongqing 400044， China; 2. Science and Technology on Reactor System Design Technology Laboratory， Chengdu 610041， China.

Received:2019-11-05 Revised:2019-11-05 Online:2020-08-15 Published:2020-08-28
Contact: XIE Yi
About author:-
Supported by:
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摘要/Abstract

摘要： 建立了核级节流管道的流动-振动-辐射噪声仿真模型，并基于实验和仿真研究了辐射噪声产生的机理及节流孔径和来流流量对振动噪声的影响规律. 节流管道的噪声受节流管道流场中流体尾迹涡的影响:流体在管壁上产生周期性的激振力，且激振力的频率与管道模态所对应的频率相近，从而加剧了振动，导致辐射噪声的产生. 此外，随着节流孔直径的增加，节流管道的振动及辐射噪声逐渐减小；随着来流流量的增加，节流管道振动以及辐射噪声逐渐增大.

关键词: 核级管道, 节流板, 管道振动, 辐射噪声, 节流孔直径

Abstract: The simulation model of flow-vibration-radiation noise was established for the throttling pipe used in the nuclear reactor. The mechanism of generating radiation noise and the influence of throttling hole diameter and flow rate on the vibration and noise were studied by the experiment and simulation. The radiation noise generates because of the wake vortices in the flow field of throttling pipe. When the frequency of the periodically exciting force generated on the pipe wall by the fluid in the pipe approaches that of the corresponding pipe modal， the vibration is enhanced， resulting in the radiation noise. Moreover， the vibration and radiation noise reduce with the increase of the throttling hole diameter， and enhance with the increase of the inlet flow rate.

Key words: nuclear level pipeline, throttling plate, pipe vibration, radiation noise, throttling hole diameter

中图分类号:

TL353

谢翌，奚冬，刘建，刘帅. 节流板孔直径及流量对核级管道流致噪声的影响[J]. 东北大学学报:自然科学版, 2020, 41(8): 1140-1147.

XIE Yi， Xi Dong， LIU Jian， LIU Shuai. Influence of the Throttling Plate Hole Diameter and Flow Rate on the Flow-Induced Noise for Nuclear Level Pipeline[J]. Journal of Northeastern University Natural Science, 2020, 41(8): 1140-1147.

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节流板孔直径及流量对核级管道流致噪声的影响

Influence of the Throttling Plate Hole Diameter and Flow Rate on the Flow-Induced Noise for Nuclear Level Pipeline

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