Two-phase velocity fields in a round turbulent jet with Reynolds number 8500 were measured by phase Doppler Particle Analyzer (PDPA).

采用相多普勒颗粒分析仪(PDPA)测量了雷诺数为8500的两相圆湍射流速度场，研究了两种大粒径颗粒对湍流的调制作用。

youdao

Detailed spray characteristics were obtained for a dual orifice atomizer using a phase Doppler particle analyzer (PDPA) in this study.

应用相多普勒粒度分析仪(PDPA)获得了双油路喷嘴详细的喷雾特性。

youdao

The dilute gas-particle flows in a cyclone chamber with axial and tangential inlers of different swirl numbers were studied by using a Phase-Doppler Particle Anemometer(PDPA).

利用相位多普勒仪（PDPA）系统研究了不同旋流数下突扩旋风筒内气粒两相湍流特性的变化规律。

youdao