水平加速条件下矩形通道内冷却剂温度与流场分析

Analysis on Coolant Temperature and Velocity Fields in Rectangular Channel With Horizontally Acceleration

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水平加速运动时冷却剂的温度和流场,考虑了由于船体加速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。计算结果表明,在船体的水平加速度较大时,通道出口冷却剂的温度与流场的变化很大,但持续时间较短。

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 moving with horizontal acceleration.Effect of the mass flow rate distribution variation by ship motion on channel inlet average velocity was taken into account.The result shows that the coolant temperature and velocity fields in the channel vary significantly when the horizontal acceleration is big,but the variation time is short.