The flow characteristic of the open cavity and the variation of sound pressure level(SPL) caused by a control rod spoiler were investigated by means of numerical simulation and wind tunnel test.

• 本文利用数值模拟和风洞实验相结合的方法,研究了开式流动腔体的流动机理及设置圆柱控制杆后,腔体内声压级(SPL)的变化。