摇摆条件下矩形通道内冷却剂温度与流场分析

运用流体计算软件模拟计算和分析了处于船用反应堆某处的矩形冷却剂通道在随船体摇摆运动时冷却剂的温度和流场。在计算过程中，考虑了由于船体摇摆运动而引起的流量孔板流量分配的变化对矩形通道入口速度的影响。由计算结果发现，在船体摇摆过程中，通道内冷却剂温度和流场是由船体运动而造成的通道入口冷却剂平均流速变化和通道随船体摇摆共同作用的结果。当通道入口冷却剂平均流速变化较大时，通道内冷却剂温度和流场的变化主要体现了冷却剂流量变化；而当通道入口冷却剂平均流速变化较小时，通道随船体摇摆对冷却剂温度和流场的影响明显。

Analysis on Coolant Temperature and Velocity Fields in Swinging Rectangular Channel

Coolant temperature and velocity fields of rectangular channel in a marine reactor were simulated and analyzed with computational fluid dynamic codes when the ship was swinging.Effect of the mass flow rate distribution variation by ship motion on channel inlet average velocity was taken into account.The result shows that during the ship’s swinging,coolant temperature and velocity fields are affected by the variation of inlet average velocity and swinging of the channel because of the ship motion.When the variation of channel inlet average velocity is great,the change of coolant temperature and velocity fields is dominated by it.But while it is little,the change of coolant temperature and velocity fields is affected by the channel swinging remarkably.