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在径向进气轴向出流的旋转盘腔中,在哥氏力的影响下,流体速度的切向分量和流体的总压损失均增大,用数值计算方法研究其损失特性缺乏验证。采用试验方法研究了径向进气轴向出流旋转盘腔的压力损失特性,测试了不同工况下的旋转盘腔的进、出口总压,分析了流量系数和旋转雷诺数对径向进气旋转盘腔总压损失的影响规律。试验结果表明:旋转盘腔的总压损失随旋转雷诺数的增大而增大。随流量系数的变化规律较复杂,在较小旋转雷诺数下,总压损失随流量系数的增大而增大;在较大旋转雷诺数下,总压损失随流量系数的增大先减小后增大。
Under the influence of Coriolis force, the tangential component of the fluid velocity and the total pressure loss of the fluid are all increased in the rotating disc cavity with radial inlet axial outflow, and its loss characteristics are verified by numerical calculation. The pressure loss characteristics of radial outflow rotating disk cavity were studied by the test method. The total pressure of inlet and outlet of the rotating disk cavity under different operating conditions was tested. The effects of flow coefficient and rotating Reynolds number Influence Law of Total Pressure Loss of Air Rotating Disk Cavity. The experimental results show that the total pressure loss of the rotating disk cavity increases with the increase of the rotating Reynolds number. Under the small rotation Reynolds number, the total pressure loss increases with the increase of the flow coefficient. Under the large rotation Reynolds number, the total pressure loss decreases first with the increase of the flow coefficient After the increase.