基于VOF方法对核电取水气泡幕流场特性的数值模拟  

Numerical simulation of the flow field characteristics of a bubble curtain for nuclear power intake based on the VOF approach

作　　者：何文宣 罗奇蔚 HE Wenxuan;LUO Qiwei(Shanghai Nuclear Engineering Research&Design Institute Co.,Ltd.,Shanghai 200233,China)

机构地区：[1]上海核工程研究设计院股份有限公司,上海200233

出　　处：《给水排水》2024年第S1期670-675,共6页Water & Wastewater Engineering

摘　　要：冷源取水堵塞问题成为当前国内外核电机组运营面临的新难题。针对冷源取水问题,目前已有部分国内外核电机组采用气泡幕技术吹浮海洋生物以驱导海洋生物入侵取水系统的实例。本文采用标准k-ε湍流模型结合VOF方法对国内某核电站气泡幕工程运行的气液两相流过程开展模拟分析。模拟分析结果表明,参考工程目前设计下的气泡幕产生的气泡形态分布均匀,各喷头射流间相互掺混影响显著,可形成稳定气泡幕墙,对海洋生物形成吹浮效应,本研究可为核电厂运行安全及取水防控技术研发提供参考。The problem of blockage of cold source water intake has become a new challenge for the operation of nuclear power units at home and abroad.To address the problem of cold source water intake,there are some examples of domestic and foreign nuclear power units adopting bubble curtain technology to blow floating marine organisms to drive marine organisms to invade the water intake system.In this paper,a standard k-εturbulence model combined with the VOF method is used to simulate and analyze the gas-liquid two-phase flow process in a domestic nuclear power plant bubble curtain project.The simulation results suggest that the bubbles generated by the bubble curtain under the current design of the reference project are uniformly distributed,and the nozzle jets are significantly mixed with each other,which can form a stable bubble curtain wall,and form a flotation effect on marine organisms,and this study can provide a reference for the research and development of operational safety and water intake prevention and control technology of the nuclear power plant.

关 键 词：取水安全 气泡幕 核电厂 数值模拟 VOF 

分 类 号：TL37[核科学技术—核技术及应用]