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 the range of 20–1000 Hz.… More >
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