用激光测速方法研究圆管流动的湍流间歇现象。
The turbulence intermitency in pipe transition flow is investigated experimentally by using laser Doppler velocimetry.
本文采用粒子图像测速技术研究了汽油机在不同气门升程下的气体流动规律。
In this paper, PIV (Particle Image Velocimetry) is applied to study the characteristic of in-cylinder flow field under different valve lifts.
利用粒子图像测速仪(PIV)对圆筒形容器内有自由表面变形的粘弹性流体旋转流动进行了实验研究。
By using a particle image velocimetry (PIV), an experimental study was performed on the swirling flow of viscoelastic fluid with deformed free surface in a cylindrical container.
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 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.
本文结合激光散斑测速技术（LSV），应用激光散斑过零法对定向流动的纳米流体中纳米粒子的运动状态进行了理论分析及实验研究。
In this paper, combined with the idea of Laser Speckle Velocimetry (LSV), experiments are carried out to measure the velocities of nano-particles in directional nanofluids with Zero-Crossing Method.
为探索闪急沸腾喷雾的形成机理，以氟里昂R12为试验掖体，采用激光多普勒测速仪（LDA）测量了稳定流动条件下粒子的速度分布。
In order to understand flash boiling injection, the drop velocity distribution in steady spray of freon R12 as test liquid was investigated by using LDA technique.
采用激光测速仪ldv，对轴流泵叶轮内部及进出口旋转流场进行了流动测量研究。
Flow measurements are made before, inside, and behind an axial flow rotor by LDV.
采用激光测速仪ldv，对轴流泵叶轮内部及进出口旋转流场进行了流动测量研究。
Flow measurements are made before, inside, and behind an axial flow rotor by LDV.
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