两流体模型在环形窄缝内的应用研究

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Study on Application of Two-Fluid Model in Narrow Annular Channel

1. Nuclear Science and Engineering College, Shanghai Jiaotong University, 200030, China;
2. Nuclear Power Institute of China, Chengdu, 610041, China

摘要: 采用EPRI最新开发的Chexal-Harrison相壁相间摩擦模型和简化的相壁相间传热模型,构造了适用于环形窄缝内沸腾传热和流动的两流体模型,并编制了热工水力计算程序——THYME程序。与实验数据比较,分析了环形窄缝套管在不同负荷下Relap5/Mod3.2程序和本文程序的计算结果。计算结果表明,Relap5/Mod3.2低估了环形蒸发管的蒸汽温度,本文计算结果与实验数据较为一致。
- 两流体模型 /
- 环形窄缝 /
- 热工水力
Abstract: The Chexal-Harrison two-phase wall and inter-phase friction models developed by EPRI newly and the simple two-phase wall and inter-phase heat transfer models put forward by the paper are used to set up the two-fluid model which is fitted for boiling heat transfer and flow in narrow annular channel.On the base of the two-fluid model,a thermal hydraulic code-THYME is accomplished.Then the thermal hydraulic characteristic of narrow annular channel is analyzed by RELAP5/MOD3.2 code and THYME code.Com-pared with experimental data,RELAP5/MOD3.2 underestimates the outlet steam,and the results of THYME is agreed with the experimental data.
- Two-fluid model /
- Narrow annular channel /
- Thermal hydraulic