A theoretical model of laser phase - doppler sizing anemometer based on the geometrical optics approximation of light scattering is studied.
研究和建立了以几何光学近似光散射理论为基础的激光相位多普勒空间干涉条纹模型。
The effect of wall roughness on gas-particle flows in a horizontal backward-facing step is studied using a phase-Doppler particle anemometer (PDPA) by measuring the mean and RMS particle velocities.
用相位多普勒颗粒测速仪（PDPA）测量了颗粒的平均与脉动速度，研究了壁面粗糙度对水平后台阶气粒两相流动的影响。
The primitive atomization mechanism was discussed, and the system parameters, measurement principles and measurement process of 3D phase doppler particle anemometer (PDPA) were presented.
初步探讨了旋芯式喷嘴的雾化机理，简述了三维相位多普勒粒子测速仪（PDPA）的系统参数、测量原理和测量过程。
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