[1]张小雨,成立,颜红勤*,等.沙集泵站流致噪声特性数值模拟分析[J].江苏水利,2022,(09):1-5.
 ZHANG Xiaoyu,CHENG Li,YAN Hongqin,et al.Numerical simulation analysis of flow-induced noise characteristics of Shaji Pumping Station[J].JIANGSU WATER RESOURCES,2022,(09):1-5.
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沙集泵站流致噪声特性数值模拟分析()
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《江苏水利》[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2022年09期
页码:
1-5
栏目:
治水前沿观察
出版日期:
2022-10-08

文章信息/Info

Title:
Numerical simulation analysis of flow-induced noise characteristics of Shaji Pumping Station
文章编号:
1007-7839(2022)09-0001-0005
作者:
张小雨1成立1颜红勤2*蒋红樱2
(1.扬州大学水利科学与工程学院,江苏 扬州 225009;2.江苏省水利工程科技咨询股份有限公司,江苏 南京 210029)
Author(s):
ZHANG Xiaoyu1 CHENG Li1 YAN Hongqin2 JIANG Hongying2
(1.College of Hydraulic Science and Engineering, Yangzhou University, Yangzhou 225009, China;2.Jiangsu Province Water Engineering Sci-tech Consulting Co., Ltd., Nanjing 210029, China)
关键词:
泵站流致噪声数值模拟
Keywords:
pumping station flow-induced noise numerical simulation
分类号:
TV675
文献标志码:
B
摘要:
随着江苏境内泵站改造工作的开展,泵内部流体非定常流动引起的流致噪声越来越成为影响环境的突出问题。针对在实际运行中噪声问题较为严重的沙集泵站,采用CFD/CA相结合的数值模拟方法,对比分析不同流量工况下叶片偶极子声源诱导的泵内流致噪声特性。计算结果表明,叶片偶极子声源诱导的流致噪声主要包括宽频噪声和离散噪声,声压级主频为叶频(20 Hz);在叶片偶极子声源的影响下,声压级较大值主要出现在叶轮进口附近,小流量工况下诱发的流致噪声最为强烈。
Abstract:
With the development of pumping station reconstruction in Jiangsu, the flow-induced noise caused by the unsteady flow of fluid inside the pump has increasingly become a prominent problem affecting the environment. Aiming at the Shaji pumping station with serious noise problems in actual operation, the numerical simulation method combining CFD/CA was used to compare and analyze the flow-induced noise characteristics in the pump induced by the vane dipole sound source under different flow conditions. The calculation results show that the flow-induced noise induced by the vane dipole sound source mainly includes broadband noise and discrete noise, and the main frequency of the sound pressure level is the vane frequency(20 Hz). The large value mainly occurs near the inlet of the impeller, and the flow-induced noise is the most intense under the condition of small flow.

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备注/Memo

备注/Memo:
收稿日期:2022-07-13
基金项目:国家自然科学基金(51779214);江苏省南水北调科技研发项目(SSY-JS-2020-F-43);江苏省水利科技项目(2020027)
作者简介:张小雨(1996—),女,硕士研究生,主要从事泵站工程研究。E-mail:1092607756@qq.com
通信作者:颜红勤(1973—),男,教授级高级工程师,硕士,主要从事泵站工程技术咨询。E-mail:1448625167@qq.com
更新日期/Last Update: 2022-09-25