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Numerical Analysis of Flow-Induced Vibration and Noise Generation in a Variable Cross-Section Channel

Youhao Wang1, Chuntian Zhe1, Chang Guo2, Jinpeng Li3, Jinheng Li3, Shen Cheng2, Zitian Wu1, Suoying He1, Ming Gao1,*

1 Shandong Engineering Laboratory for High-Efficiency Energy Conservation and Energy Storage Technology & Equipment, School of Energy and Power Engineering, Shandong University, Jinan, 250061, China
2 School of Energy and Power Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, 250301, China
3 Shandong Beinuo Cooling Equipment Co., Ltd., Dezhou, 253000, China

* Corresponding Author: Ming Gao. Email: email

(This article belongs to the Special Issue: Advances in Thermodynamic System and Energy Conservation Technology)

Fluid Dynamics & Materials Processing 2023, 19(12), 2965-2980. https://doi.org/10.32604/fdmp.2023.029292

Abstract

Flow channels with a variable cross-section are important components of piping system and are widely used in various fields of engineering. Using a finite element method and modal analysis theory, flow-induced noise, mode shapes, and structure-borne noise in such systems are investigated in this study. The results demonstrate that the maximum displacement and equivalent stress are located in the part with variable cross-sectional area. The average excitation force on the flow channel wall increases with the flow velocity. The maximum excitation force occurs in the range of 0–20 Hz, and then it decreases gradually in the range of 20–1000 Hz. Additionally, as the flow velocity rises from 1 to 3 m/s, the overall sound pressure level associated with the flow-induced noise grows from 49.37 to 66.37 dB. Similarly, the overall sound pressure level associated with the structure-borne noise rises from 40.27 to 72.20 dB. When the flow velocity is increased, the increment of the structure-borne noise is higher than that of the flow-induced noise.

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APA Style
Wang, Y., Zhe, C., Guo, C., Li, J., Li, J. et al. (2023). Numerical analysis of flow-induced vibration and noise generation in a variable cross-section channel. Fluid Dynamics & Materials Processing, 19(12), 2965-2980. https://doi.org/10.32604/fdmp.2023.029292
Vancouver Style
Wang Y, Zhe C, Guo C, Li J, Li J, Cheng S, et al. Numerical analysis of flow-induced vibration and noise generation in a variable cross-section channel. Fluid Dyn Mater Proc. 2023;19(12):2965-2980 https://doi.org/10.32604/fdmp.2023.029292
IEEE Style
Y. Wang et al., "Numerical Analysis of Flow-Induced Vibration and Noise Generation in a Variable Cross-Section Channel," Fluid Dyn. Mater. Proc., vol. 19, no. 12, pp. 2965-2980. 2023. https://doi.org/10.32604/fdmp.2023.029292



cc This work is licensed under a Creative Commons Attribution 4.0 International License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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