Study on Vortex Control Around Pump Intake in a Circular Pump Station

被引：1

作者：

Park, Young-Kyu ^{[1
]}

Choi, Yoon-Hwan ^{[1
]}

Han, Ji-Woong ^{[2
]}

Jung, Yohan ^{[2
]}

Kim, Hyunjong ^{[3
]}

Lee, Yeon-Won ^{[4
]}

机构：

[1] Pukyong Natil Univ, Res Inst Ind Sci & Technol, Busan, South Korea

[2] Korea Atom Energy Res Inst, Daejeon, South Korea

[3] Pukyong Natil Univ, Grad Sch, Busan, South Korea

[4] Pukyong Natl Univ, Dept Mech Design Engn, Busan, South Korea

来源：

TRANSACTIONS OF THE KOREAN SOCIETY OF MECHANICAL ENGINEERS B | 2018年 / 42卷 / 01期

关键词：

CFD; Circular Pump Station; Subsurface Vortex; Vorticity; Time-averaged Velocity Ratio; Relative Standard Deviation;

D O I：

10.3795/KSME-B.2018.42.1.027

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

In this study, the behavior of a subsurface vortex in a circular pump station is analyzed by computational fluid dynamics according to the operating conditions of a reactor cooling pump. The subsurface vortex is a rotating turbulent flow created from the wall to the suction pipe; it negatively affects the performance and durability of the pump. Therefore, it is important to check the occurrence and effects of subsurface vortex. The results show that the rotation of the subsurface vortex occurs simultaneously in both the clockwise and counterclockwise directions, and the maximum vorticity of each rotation alternate. In addition, the increase in bell mouth distance from the wall is expected to reduce the internal fluctuation (between the wall and the bell mouth), therefore it helps to meet the pump operating conditions.

引用

页码：27 / 33

页数：7

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