铅铋介质中螺旋盘管管束三维流场数值模拟方法研究

殷一博; 温济铭; 田瑞峰; 高璞珍; 夏榜样; 陈冲; 张雪; 谭思超

doi:10.13832/j.jnpe.2025.01.0063

铅铋介质中螺旋盘管管束三维流场数值模拟方法研究

doi: 10.13832/j.jnpe.2025.01.0063

殷一博^{1, 2,},
温济铭^{1, 2},
田瑞峰^{1, 2, ,},
高璞珍^{1, 2},
夏榜样³,
陈冲³,
张雪³,
谭思超^{1, 2}

1.
哈尔滨工程大学核科学与技术学院，哈尔滨，150001
2.
哈尔滨工程大学黑龙江省核动力装置性能与设备重点实验室，哈尔滨，150001
3.
中国核动力研究设计院先进核能技术全国重点实验室，成都，610213

基金项目: 中核领创项目基金

详细信息

作者简介:
殷一博（1997—），男，博士研究生，现主要从事铅铋介质中流致振动方面的研究，E-mail: yiboyin747@hrbeu.edu.cn

通讯作者:
田瑞峰，E-mail: tianruifeng@hrbeu.edu.cn

中图分类号: TL334
计量
- 文章访问数: 130
- HTML全文浏览量: 58
- PDF下载量: 11
- 被引次数: 0
出版历程
- 收稿日期: 2024-05-06
- 修回日期: 2024-07-29
- 刊出日期: 2025-02-15

Study on Numerical Simulation Method of Three-Dimensional Flow Field of Spiral Coil Tube Bundle in Lead-Bismuth Medium

Yin Yibo^{1, 2
,},
Wen Jiming^{1, 2},
Tian Ruifeng^{1, 2
, ,},
Gao Puzhen^{1, 2},
Xia Bangyang³,
Chen Chong³,
Zhang Xue³,
Tan Sichao^{1, 2}

1.
College of Nuclear Science and Technology, Harbin Engineering University, Harbin, 150001, China
2.
Heilongjiang Provincial Key Laboratory of Nuclear Power System & Equipment, Harbin Engineering University, Harbin, 150001, China
3.
State Key Laboratory of Advanced Nuclear Energy Technology, Nuclear Power Institute of China, Chengdu, 610213, China

摘要

摘要: 在换热器设计中，通过了解铅铋介质在管束中的旋流和涡流等三维流场特性，可以更好地预测和评估换热管设计，确保换热器的安全稳定运行。本研究基于数值模拟对温度为200℃、入口流速为0.5 m/s的铅铋介质在螺旋盘管中的漩涡脱落问题开展研究，以验证后的大涡模拟（LES）方法计算结果为标准，与不同模型进行对比，得到关于此问题的较高计算效率求解模型。结果表明，分离涡模拟（DES）剪切应力传输模型（SST） k-ω与LES模型相比具有较高的计算效率；在研究范围内螺旋盘管至少受漩涡脱落和湍流激振的影响，不同管子之间的脱落漩涡相互影响，导致升阻力频谱出现多峰特征；与直管束不同，螺旋管束下游的流动结构和速度分布都是不对称的，由于螺旋盘管升角的存在，增强了管间间隙的法向速度，且螺旋盘管的盘绕形状使横向速度分布更加不均匀。
- 螺旋盘管 /
- 铅铋介质 /
- 三维流场 /
- 大涡模拟（LES）
Abstract: In the design of heat exchanger, by understanding the three-dimensional flow field characteristics such as swirling and vortical flow of the lead-bismuth medium in the tube bundle, the design of heat exchange tube can be better predicted and evaluated to ensure the safe and stable operation of heat exchanger. This study focuses on investigating the phenomenon of vortex shedding of lead-bismuth medium in a helical coil using numerical simulations. The simulations were conducted at a temperature of 200℃ and an inlet flow velocity of 0.5 m/s. The validated large eddy simulation (LES) model results were used as a benchmark to compare with different models, aiming to develop a computationally efficient solution model for this problem. The results show that detached eddy simulation (DES) SST k-ω model has higher computational efficiency than LES model. Within the study range, the spiral coil tube bundle is at least affected by vortex shedding and turbulent excitation. The interaction between shedding vortices from different tubes leads to a multi-peak feature in the lift and drag spectrum. Different from the straight tube bundle, the flow structure and velocity distribution downstream of the spiral coil tube bundle are asymmetrical. Additionally, the normal velocity of the gap between the tubes is enhanced due to the existence of the rise angle of the spiral tube bundle, and the coiling shape of the spiral tube makes the lateral velocity distribution more uneven.
- Spiral coil tube bundle /
- Lead-bismuth medium /
- Three-dimensional flow field /
- Large Eddy Simulation (LES)

HTML全文

图 1 单排螺旋盘管模型

Figure 1. Single Row Spiral Coil Model

下载: 全尺寸图片幻灯片

图 2 光滑单棒表面的平均压力系数对比

U—来流流速，m/s

Figure 2. Comparison of Average Pressure Coefficient of Smooth Single Rod Surface

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图 3 螺旋盘管网格划分

Figure 3. Spiral Tube Grid Division

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图 4 不同网格数量阻力计算结果

Figure 4. Drag Calculation Results with Different Grid Number

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图 5 升阻力及升阻力系数随时间变化曲线

Figure 5. Lift and Drag Coefficient Changing Curves with Time

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图 6 升阻力频率

Figure 6. Frequency of Lift and Drag

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图 7 T1的升力功率谱密度

Figure 7. Power Spectral Density of the Lift of T1

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图 8 观察面示意图

Figure 8. Schematic Diagram of Observation Surface

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图 9 初始阶段涡量云图

V1、V2为漩涡编号

Figure 9. Contour of Vorticity in Initial Stage

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图 10 稳定阶段涡量云图

Figure 10. Contour of Vorticity in Stable Stage

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图 11 不同湍流模型关于螺旋盘管升阻力系数计算结果

Figure 11. Calculation Results of Lift and Drag Coefficient of Different Turbulence Models on Spiral Coils

下载: 全尺寸图片幻灯片

图 12 不同湍流模型关于螺旋盘管升阻力频率计算结果

Figure 12. Calculation Results of Different Turbulence Models on the Lift and Drag Frequency of Spiral Coil

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图 13 不同湍流模型的速度云图

Figure 13. Velocity Contour of Different Turbulence Models

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图 14 不同湍流模型的流线图

Figure 14. Streamline Chart of Different Turbulence Models

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图 15 不同位置处瞬时速度分布

Figure 15. Instantaneous Velocity Distribution at Different Positions

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表 1 不同湍流模型的C_d计算结果

Table 1. Calculation Results of Drag Coefficient of Different Turbulence Models

湍流模型	计算耗时/h	C_d			C_d相对偏差/%
湍流模型	计算耗时/h	T1	T2	T3	T1	T2	T3
LES	138	4.58	3.69	4.45
DES SST k-ω	111	4.32	3.55	4.34	5.70	3.82	2.57
DES Realizable k-ε	120	2.89	2.44	3.03	36.88	33.78	32.03
Re-stress	183	2.82	2.28	3.06	38.41	38.12	31.17

下载: 导出CSV

表 2 不同湍流模型的C_l计算结果

Table 2. Calculation Results of Lift Coefficient of Different Turbulence Models

湍流模型	计算耗时/h	C_l			C_l相对偏差/%
湍流模型	计算耗时/h	T1	T2	T3	T1	T2	T3
LES	138	1.81	0.37	0.60
DES SST k-ω	111	1.66	0.40	0.6	8.28	7.14	0.90
DES Realizable k-ε	120	0.81	0.59	0.84	55.19	57.14	39.64
Re-stress	183	0.74	0.47	0.54	59.09	25.51	10.81

下载: 导出CSV

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