基于子通道-CFD耦合程序的棒束通道多尺度耦合模拟研究

刘卢果; 江光明; 夏云峰; 梁禹; 王明军; 刘余

doi:10.13832/j.jnpe.2024.05.0256

基于子通道-CFD耦合程序的棒束通道多尺度耦合模拟研究

doi: 10.13832/j.jnpe.2024.05.0256

刘卢果^{1, 2,},
江光明¹,
夏云峰¹,
梁禹¹,
王明军³,
刘余¹

1.
中国核动力研究设计院核反应堆系统设计技术重点实验室，成都，610213
2.
西安交通大学能源与动力工程学院热流科学与工程教育部重点实验室，西安，710049
3.
西安交通大学核科学与核技术学院，西安，710049

详细信息

作者简介:
刘卢果（1992—），男，工程师，现主要从事反应堆热工水力与安全分析相关研究，E-mail: llg19920420@foxmail.com

中图分类号: TL362
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- 文章访问数: 87
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- 被引次数: 0
出版历程
- 收稿日期: 2023-10-31
- 修回日期: 2024-01-19
- 刊出日期: 2024-10-14

Research on Multi-scale Coupling Simulation of Rod Bundle Channels Based on Subchannel-CFD Coupling Code

1.
Science and Technology on Reactor System Design Technology Laboratory, Nuclear Power Institute of China, Chengdu, 610213, China
2.
Key Laboratory of Thermal Fluid Science and Engineering of MOE, Xi’an Jiaotong University, Xi’an, 710049, China
3.
School of Nuclear Science and Technology, Xi’an Jiaotong University, Xi’an, 710049, China

摘要

摘要: 利用子通道程序进行堆芯热工水力分析时需要给定实时变化的堆芯入口状态参数等信息，而计算流体动力学（CFD）程序能够计算堆芯入口精细热工水力参数。因此本文通过内部耦合策略，基于动态链接库技术实现子通道程序CORTH与CFD程序FLUENT的多尺度耦合程序开发，并针对PNL 2×6基准题实验工况进行模拟计算，其中FLUENT程序计算实验入口区域，为CORTH程序提供准确的入口流量分布，而CORTH程序用于计算模拟加热段。结果表明，多尺度耦合程序能够实现子通道程序与CFD程序的热工参数信息实时传递，并且模拟计算结果与实验结果符合良好。
- 子通道程序 /
- 计算流体动力学（CFD）程序 /
- 多尺度耦合 /
- PNL 2×6
Abstract: When the subchannel code is used for core thermal hydraulic analysis, it is necessary to give the real-time information such as the state parameters of the core inlet, and the computational fluid dynamics (CFD) code can calculate the fine thermal hydraulic parameters of the core inlet. In this paper, the subchannel code CORTH is explicitly coupled with the CFD code FLUENT by means of internal coupling method and dynamic link library technology. The coupling code is further used to simulate the experimental conditions of PNL 2×6 benchmark problem, in which FLUENT calculates the inlet section to provide accurate inlet flow distribution for CORTH, while CORTH calculates the simulated heating section. The results show that the multi-scale coupling code can realize the real-time transmission of thermal parameter information between sub-channel code and CFD code, and the simulation results are in good agreement with the experimental results.
- Subchannel code /
- Computational Fluid Dynamics (CFD) code /
- Multi-scale coupling /
- PNL 2×6

HTML全文

图 1 通道横截面示意图 mm

红色1~12—加热棒编号；黑体1~21—子通道编号；x、y—坐标轴

Figure 1. Scheme of Rod Bundle Cross-section

下载: 全尺寸图片幻灯片

图 2 耦合接口处流量随时间的变化

Figure 2. Mass Flow Rate at Coupling Interface vs. Time

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图 3 y=0处出口速度FLUENT计算值与实验值的比较

Figure 3. FLUENT vs. Experimental Results for Outlet Velocity Distribution at y=0

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图 4 加热段出口y=0处的速度分布

Figure 4. Velocity Distribution of Heating Section Outlet at y=0

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图 5 工况8 FLUENT入口速度设置

Figure 5. FLUENT Inlet Velocity Setting of Case 8

下载: 全尺寸图片幻灯片

图 6 工况8出口速度变化

Figure 6. Outlet Velocity Variation of Case 8

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图 7 工况8出口温度变化

Figure 7. Outlet Temperature Variation of Case 8

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表 1 PNL 2×6 部分实验工况

Table 1. Partial Experimental Cases for PNL 2×6

工况	初始流量/ （10⁻⁵ m³·s⁻¹）	最终流量/ （10⁻⁵ m³·s⁻¹）	瞬态时间/s	加热棒高功率/kW	加热棒低功率/kW
1	7.89	7.89	0	0	0
2	7.89	7.89	0	0.91	0
3	19.43	19.43	0	0	0
4	19.43	19.43	0	0.91	0.91
5	19.43	6.81	150	0	0
6	19.43	6.81	150	0.91	0
7	19.43	6.81	45	0	0
8	19.43	6.81	45	0.91	0
9	19.43	19.43	0	0.91	0
10	6.81	6.81	0	0	0
11	6.81	6.81	0	0.91	0

下载: 导出CSV

参考文献(12)

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