Dynamic Response Analysis of Dual-Flow Channel Pump Station Structure under Water Pressure Pulsation

Chengcheng Hou, Li Cheng, Weifeng Pan, Songbai Li and Weixuan Jiao
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Chengcheng Hou: College of Hydraulic Science and Engineering, Yangzhou University, Yangzhou 214000, China
Li Cheng: College of Hydraulic Science and Engineering, Yangzhou University, Yangzhou 214000, China
Weifeng Pan: Luoyun Water Conservancy Project Management Divison in Jiangsu Province, Suqian 223800, China
Songbai Li: The Eastern Route of South-to-North Water Diversion Project Jiangsu Water Source Co., Ltd., Nanjing 210029, China
Weixuan Jiao: College of Hydraulic Science and Engineering, Yangzhou University, Yangzhou 214000, China

Energies, 2022, vol. 15, issue 10, 1-19

Abstract: The RNG k-ε model turbulence model is used to carry out a CFD numerical simulation of the dual-flow channel pumping station. Through the model test, the accuracy of the numerical simulation of the dual-flow channel pump device is verified. Using the harmonic response analysis method, the water pressure fluctuating load calculated under different startup conditions under the design water level is applied to the pumping station. In this way, the dynamic response law of the pump station structure under the action of water pressure pulsation is studied. The calculation results show that the values of pressure pulsation in the drainage condition and the water diversion condition are relatively close, and the main difference is the difference in the water levels of the inlet and outlet water. Under different working conditions, the amplitude of the pumping station building basically shows the characteristics that the vertical amplitude is greater than the horizontal amplitude. The maximum dynamic displacement under drainage condition is greater than that under the diversion condition, and the maximum dynamic displacement appears at the control gate. Under the three working conditions, the maximum dynamic stress of each characteristic part of the pumping station building is low. The maximum total dynamic stress under the drainage condition is greater than that under the diversion condition.

Keywords: dual-flow channel pump station; different working conditions; harmonic response; water pressure pulsation; dynamic response (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
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