Influence of Different Lateral Bending Angles on the Flow Pattern of Pumping Station Lateral Inflow

Author:

Zhou Jiren1,Zhao Miaomiao1,Wang Chuan12ORCID,Gao Zhenjun3

Affiliation:

1. College of Hydraulic Science and Engineering, Yangzhou University, Yangzhou 225009, China

2. Research Center of Fluid Machinery Engineering and Technology, Jiangsu University, Zhenjiang 212013, China

3. College of Mechanical and Power Engineering, China Three Gorges University, Yichang 443002, China

Abstract

A model of the pumping station lateral inflow forebay was established to explore the influence of different lateral bending angles of the pumping station lateral inflow. The lateral bending angles were set at 45° and 60°, and the two schemes were calculated separately. Analyzing the results of the numerical simulation showed that the flow patterns of the diversion passages of different schemes were good, but the advancing mainstream of the 1# inlet passage near the sidewall was seriously deviated after entering the forebay. Most of the water can flow smoothly into the inlet passage, while a small part of the water flowed into the sidewall and formed a backflow, resulting in a large-scale backflow zone near the left sidewall of the forebay. Moreover, the flow in the backflow zone was turbulent, which affected the water inlet conditions of the 1# water flow passage. Comparing the water inlet conditions of the water passage with the numerical simulation results of 45° and 60° bending angles showed that the larger the lateral bending angle of the forebay was, the worse the flow pattern of the water flow, and the more unfavorable the pump operation.

Publisher

Hindawi Limited

Subject

Mechanical Engineering,Mechanics of Materials,Geotechnical Engineering and Engineering Geology,Condensed Matter Physics,Civil and Structural Engineering

Reference24 articles.

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4. Experimental study on the evolution process of the roof-attached vortex of the closed sump

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