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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,*

    FDMP-Fluid Dynamics & Materials Processing, Vol.19, No.12, pp. 2965-2980, 2023, DOI: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 More >

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