软件导刊2024，Vol.23Issue(1)：21-25,5.DOI:10.11907/rjdk.231605
基于Modelica的并联多通道系统流动不稳定性仿真研究
Simulation Research on Flow Instability of Parallel Multi-channel System Based on Modelica
童秋实 1邓康杰 2吕星 1曾小康 2王艳林 2杨浩 1陈路1
作者信息
- 1. 苏州同元软控信息技术有限公司,江苏 苏州 215123
- 2. 中国核动力研究设计院中核核反应堆热工水力技术重点实验室,四川 成都 610213
- 折叠
摘要
Abstract
In the parallel channel of the nuclear reactor core,flow instability can lead to a significant decrease in critical heat flux(CHF)or mechanical oscillation of the core fuel assembly,thereby endangering the normal operation of the reactor.In order to solve this problem,based on a high-temperature and high-pressure steam water two-phase thermal hydraulic experimental device,a parallel dual channel system model was built using NUMAP software for flow instability simulation research.The experiment shows that when the number of parallel channels is 2,3,and 4,the flow instability boundary of the parallel multi-channel system under the same operating conditions is calculated through simula-tion,and the calculation error of the flow instability boundary is not more than±5%.It is verified that the flow instability boundary can be ob-tained by using a parallel dual channel structure when there are multiple parallel heating channels,and the transient analysis ability of the soft-ware for flow instability phenomena is confirmed.关键词
流动不稳定性/并联多通道系统/流动不稳定性边界/Modelica/NUMAPKey words
flow instability/parallel multi-channel system/flow instability boundary/Modelica/NUMAP分类
计算机与自动化引用本文复制引用
童秋实,邓康杰,吕星,曾小康,王艳林,杨浩,陈路..基于Modelica的并联多通道系统流动不稳定性仿真研究[J].软件导刊,2024,23(1):21-25,5.
