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中文摘要：
针对核反应堆冷却剂系统中的主管道安注斜接管等温横向射流问题,应用计算流体力学商用软件CFX进行等温横向射流流动的数值模拟,得出了典型运行工况下的三维流场分布。深入研究了射流与主流在不同流速比情况下等温横向射流的流动特性、影响区域及主要影响因素,在所研究的参数范围内,得出了流速比是决定等温横向射流流动特性的最重要因素,同时将数值模拟结果与流动可视化试验结果进行了比较,二者吻合良好。
英文摘要：
In order to investigate the flow characteristics of isothermal jet into cross-flow for a safety injection （SI） inclined tube in the reactor cooling system, the numerical simulations were carried out at various velocity ratios between jet and main flow by using the commercial computational fluid dynamics software CFX. Via the computations, the 3-D flow traces of the typical operation condition were obtained, also the flow characteristics, the effect region and the factors that contribute to the flow characteristics were studied. Based on the results, it can be concluded that the velocity ratio was the most important factor in this flow type. The calculations were agreed well with the visualization tests.
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