ADS无窗靶件流场结构和自由界面数值模拟研究

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基金项目:

国家自然科学基金资助项目(91026020)

Numerical Simulations on Flow Field Structure and Free Surface Behavior of ADS Windowless Target

School of Nuclear Science and Engineering, Shanghai Jiaotong University, Shanghai, 200240, China

摘要: 自由界面流动现象是加速器驱动次临界系统(ADS)无窗靶件研究的重要组成部分。采用计算流体动力学(CFD)方法,对上海交通大学设计的无窗靶件流道结构中的自由界面流动水力学行为进行数值模拟研究。数值模拟使用FlUENT软件平台,采用体积流体法(VOF)与界面追踪方法结合湍流大涡模型(LES),进行Re在35000～80000工况下的非稳态计算。模拟结果得到了自由界面稳定性、自由界面宽度、大尺度漩涡结构、漩涡滞止区长度和锥形段流道沿程压力随Re变化的规律。
- 无窗靶件 /
- 自由界面 /
- 漩涡滞止区 /
- 体积流体法 /
- 大涡模拟
Abstract: Free surface flow is one of the most important parts in the studies of windowless target in Acceleration Driven System（ADS）. CFD simulations were performed in order to investigate the hydraulic behaviors of the free surface flow in the optimal structure of windowless target designed by Shanghai Jiao Tong University. Volume of fluid（VOF） method and large eddy simulation（LES） were applied in transient calculations on FLUENT platform at Re=35,000~80,000. The simulation results achieve the variation characteristics of free surface stability, free surface width, vortex structure, vortex stagnation length and pressure along conical channel with the increase of Re.
- Windowless target /
- Free surface /
- Vortex stagnation zone /
- Volume of fluid /
- Large eddy simulation