基于CFD方法的核级轴流泵水力性能研究

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Hydraulic Performance Analysis of Nuclear Axial Pump Based on CFD Method

Science and Technology on Reactor System Design Technology Laboratory, Nuclear Power Institution of China, Chengdu, 610041, China

摘要: 以核级轴流泵为研究对象,采用计算流体动力学(CFD)方法对其内部流场进行数值模拟,应用k-ε模型对三维流场进行计算。采用以扭矩计算轴功率、以扬程和流量计算有效功率等方法,得到该泵水力性能的分析结果。将扬程、轴功率、效率的计算结果和试验结果进行比较,最大偏差分别为6.3%、4.9%、2.2%,最小偏差分别为3.4%、1.4%、1.0%,两者吻合良好。计算结果表明所使用的计算方法在对核级泵性能分析方面的应用是可行的,可以应用于核级泵的设计及优化。
- 轴流泵 /
- 计算流体动力学 /
- 水力性能
Abstract: In this paper, a nuclear axial pump is simulated based on CFD method for its hydraulic performance. The k-ε Reynolds turbulent model is used to simulate the three-dimensional fluid field in this pump. The applied power is calculated based on the torque, and actual power based on the head and flowrate. The analysis results show good agreements with the test values. The maximum deviation for head, shaft power and efficiency is about 6.3%, 4.9% and 2.2%, respectively, and the minimum deviation is about 3.4%, 1.4% and 1.0%, respectively. Based on the analysis results, the methods used in this paper can be applied to design and optimize the nuclear pumps.
- Axial Pump /
- Computational fluid dynamics /
- Hydraulic performance