试验证明了PIV技术可以应用于被动振动非定常复杂流场的测量中，并对两维翼流体旋涡诱发振动响应进行了分析。
The experiment shows that the PIV technique can be utilized to measure the unsteady complex flow of passive vibration, and analyses the vortex-induced vibration.
研究发现，在进气过程的初始阶段，缸内始终存在一对旋涡，并且沿气缸轴线向下缸内流体出现逐步融合的趋势；
The results show that there are a couple of vortexes trending blend along the axes in the cylinder at the initial phase of intake process.
本发明是一种高效的正旋涡泵，属于流体机械。
The invention is an efficient positive vortex pump, which belongs to fluid machinery.
通过摄像法得出了旋涡表面流体质点的运动轨迹、切向和轴向时均速度。
Moving path lines, tangential and axial average velocities of particles at the vortex surface are obtained by the photography method.
自由旋涡气动窗口是利用流体微团作自由旋涡运动的离心力来平衡大气与光腔压力差，来作为高能激光束的输出窗口。
The free vortex aerodynamics window is used to be the window of high power laser beam, which takes advantage of the centripetal force of the free vortex motion of fluid.
论文第六章对旋进旋涡流量计的流体振动特性进行实验研究。
The sixth chapter made an experiment study upon the fluid oscillation characteristics of vortex precession flowmeter.
研究了双钝体旋涡脱离的流体动力学特性以及利用双钝体增强流体振动的最佳组合结构。
The dynamics characteristics of dual bluff body vortex and the best structure of dual bluff body vortex improving fluid oscillation are studied.
应用流体力学原理对桥台绕流的流场和旋涡体系进行了分析。
Based on fluid mechanics, the flow structure schemes around abutments and the vortex systems, which lead to scour, are studied.
涡轮流量计与旋涡流量计的流量系数随被测流体的物理性质变化而变化。基于这个原因，在流量计投入使用之前，应测取实际的流量系数。
The flow coefficients of Turbine Flow Meter and Votex Flow Meter will vary as the physical characteristics of the measured fluid change.
反应堆冷却剂回路温度计套管在流体流动冲刷下的振动主要有两种激励机理：湍流和旋涡脱落。
There are mainly two excitation mechanisms in the vibration of the thermo-well at the main pipe of reactor coolant loop under cross flow: turbulence and vortex shedding.
基于旋涡流体振荡原理的流量计主要有两种：涡街流量计和旋进旋涡流量计。
There are two kinds of vortex type oscillatory flowmeter: vortex flowmeter and vortex precession flowmeter.
基于旋涡流体振荡原理的流量计主要有两种：涡街流量计和旋进旋涡流量计。
There are two kinds of vortex type oscillatory flowmeter: vortex flowmeter and vortex precession flowmeter.
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