【摘要】 为研究径向预旋接受孔进气结构，建立径向预旋三维模型，对孔进气角度为0°～60°的径向接受孔进行稳态数值模拟。数值计算结果显示，伴随接受孔径向角度的增加，来流冲击接受孔壁面强度增强，并强制改变了气流的方向，使气流以一定角度进入共转盘腔，增强对气流的导向作用，接受孔角度为40°时，接受孔出口涡流强度降低。接受孔角度在0°～30°,接受孔附近气流的静压以及接受孔进口静温逐渐减小，当角度>40°时气流静压及静温升高。进气角度30°时流量系数达到最大，当雷诺数为Re_ω=1.25×10~6时，接受孔进气角度为30°时较0°时的温降系数提高24.4%。更多还原

【Abstract】 In order to study the radial pre-rotation receiver hole intake structure, three-dimensional radial pre-spinning simplified model is established, and the steady-state numerical simulation of the radial receiver hole inlet angle of 0 °-60 ° is conducted. The results show that with the increase of the angle of the receiver hole, the strength of the wall of incoming flow receiver hole is enhanced, which causes forced change of the airflow direction, ushering the airflow into the rotating cavity at a certain angle to enhance the guiding effect on the airflow. When the receiver hole angle is at 40°,the outlet vortex intensity is lowered. As the acceptance hole angle is between 0° and 30°, the static pressure of the airflow near the receiver hole and the static temperature of the inlet of the receiver hole are gradually reduced. When the angle is greater than 40°, the static pressure of the airflow and the static temperature increase, and when the inlet angle is at 30°, the flow coefficient reaches the maximum. As Re_ω=1.25×10~6 with the acceptance hole angle is between 0° and 30°, the temperature drop coefficient increases by 24. 4%.更多还原