稠密带缠绕丝棒束阻力特性研究

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Investigation on Flow Resistance Coefficient of Wires Wrapped Tight Lattice Rods Bundle

CNNC Key Laboratory on Nuclear Reactor Thermal Hydraulics Technology, NPIC, Chengdu, 610041

摘要: 为获得稠密布置燃料组件的阻力系数,应用稠密带缠绕丝棒束进行实验研究,拟合阻力系数关系式,并将关系式与经典Rehme关系式进行比较分析。结果表明Rehme关系式不适用于本实验棒束。同时应用计算流体力学(CFD)方法、剪切应力输运模型(SST)湍流模型对实验进行模拟,获得棒束内部的流动形式、压力场和沿程阻力系数,并与实验结果进行对比。结果表明CFD方法可作为预测稠密带缠绕丝棒束单相流动阻力系数的参考。
- 稠密棒束 /
- 绕丝 /
- 阻力特性 /
- 实验研究 /
- 计算流体力学
Abstract: Experimental study on flow resistance coefficient of tight lattice fuel assemblies was per-formed,and a new correlation was proposed.Comparison between new correlation and typical Rehme corre-lation shows the latter correlation is not suitable for the test section.CFD study with SST model was per-formed to simulate experiments and analyze flow field,pressure field and flow resistance coefficient.The re-sults show that CFD method can be a reference for the prediction of single phase flow resistance of wires wrapped tight lattice rods bundle.
- Tight lattice /
- Wires wrapped /
- Resistance coefficient /
- Experimental study /
- CFD