particle image velocimetry

By taking advantage of PIV ( Particle Image Velocimetry) technique, the unsteady flow fields around different ribs are captured, which reveals the nonlinear evolution processes of vortices.

用粒子图像测速仪（PIV）设备对不同高度下肋板的非定常绕流场进行了全场测试，揭示了肋板尾流场旋涡随时间推进所经历的非线性演化过程。

The velocity field measurement by use of the particle image velocimetry and particle tracking velocimetry ( PIV/ PTV) system in a tidal estuary model test has advantages of high speed and accuracy.

在潮汐河口河工模型试验中采用粒子测速（PIV/PTV）系统测量流场，具有快速、精度高的优点。

Liquid film flow field in gas-liquid-solid three phase flow through a curved pipe were measured by Particle Image Velocimetry ( PIV) for a better understanding of the phase separation phenomena.

为了深入认识螺旋管内多相流相分离现象，应用粒子图象测速仪（PIV），对组合弯管内气水砂三相流底部水平段和上升段中液膜区的流场进行了测量。

The Development of Particle Image Velocimetry

粒子图像测速（PIV）技术的发展

The characteristics of warship air-wake can be obtained by means of particle image velocimetry ( PIV ).

应用粒子图像测速技术 ( PIV ) 获得了舰船空气尾流场特性,介绍了试验模型及PIV设备的安装方法和试验方案.

By ( Particle Image Velocimetry) PIV technique, the reactive flow fields and the cold flow fields were measured for 4 different operating modes. The velocity fields have been acquired successfully.

利用粒子图像速度场测量（PIV）技术对4种不同工况的冷热态流场进行了测量，得到了燃烧火焰内部的速度场和相应工况下的冷态速度场。

Particle Image Velocimetry ( PIV) and its image measurement techniques have been rapidly developed with the drastic development of image processing method and computers.

随着计算机和图像处理方法的迅猛发展，粒子图像测速仪（particle image velocimetry，简称PIV）和图像测量技术得到了迅速的发展。

The RNG k-ε turbulence model has been applied to simulate turbulent flows in symmetrical planes and in three dimensions of curved inlet cut-off valves, and its performance is compared to the results measured by a particle image velocimetry ( PIV) in the experiments.

采用了RNG k-ε紊流模型和贴体坐标对截止阀对称面和三维流场进行了模拟，同时用粒子成像流速仪（PIV）对弯型截止阀对称面模型的测试结果和数值模拟结果进行了验证。

Application of the particle image velocimetry and particle tracking velocimetry system in tidal estuary model tests

粒子测速系统在潮汐河口河工模型试验中的应用

Flow distributions of header configurations in plate-fin heat exchangers with particle image velocimetry ( PIV) The correlations of the flow maldistribution characteristic with Reynolds number are obtained under different header configurations.

得到了不同封头结构的物流分配不均匀特性与雷诺数之间的关系式.利用粒子图像测速仪（PIV），对板翅式换热器封头结构改进前、后的流场进行了可视化研究分析。

An experimental study on the breakup of a conical liquid sheet from a pressure swirl atomizer was conducted by using a Particle Image Velocimetry ( PIV) system.

应用PIV激光粒子图像测速仪对由离心式压力雾化喷嘴喷出的锥形液膜的破碎进行了实验研究。

PIV ( Particle Image Velocimetry ) measurement reveals the velocity field on the upper surface of the blade.

实验手段显示出叶片上表面速度场.

Particle Image Velocimetry ( PIV) was used to investigate particle velocity field in a riser of gas-solid circulating fluidized bed.

利用粒子图像测速仪（PIV）对循环流化床中颗粒流场进行了系统的实验研究。

Experimental Study on Spray Characteristic of Diesel Fuel by Digital Particle Image Velocimetry

运用数字粒子图像测速技术测量柴油瞬态喷雾气液同轴式喷嘴雾化特性的试验

Flow characteristics of flow field in the header of a plate-fin heat exchanger were investigated with particle image velocimetry ( PIV).

利用粒子图像测速仪（PIV），对板翅式换热器封头结构改进前、后的流场进行了可视化研究分析。

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。

The Interrogation Method of Greyness Discriminance for Laser Particle Image Velocimetry

激光粒子图像测速技术的灰度判别查询方法

Velocity Field and pressure Field in cavitation region with different air concentrations were observed in details by using three-dimensional Particle Image Velocimetry in the Hydraulics Laboratory at Zhejiang University of Technology.

在浙江工业大学水力学实验室的直流式水洞中利用三维粒子图像测速仪（PIV）等先进的量测技术，在不同的掺气浓度条件下，对空化区流速场和压力场进行了测量与分析。

Digital Particle Image Velocimetry ( DPIV ) is a technology for fast, full-field velocity measurement.

粒子图像测速是一种快速全流场测量方法.

Swirling flows of dilute cetyltrimethyl ammonium chloride ( CTAC) surfactant solutions in an open cylindrical container with a rotating disc at the bottom were experimentally investigated by a double-pulsed particle image velocimetry ( PIV) system.

利用粒子成像测速仪系统对开口圆柱容器内由旋转底盘带动的低浓度十六烷基三甲基氯化铵界面活性剂溶液的旋转流动进行了实验研究。

Particle Image Velocimetry System Development and Application in the Aeration Tank

粒子图像测速系统开发及在曝气池流场中应用