The performance of hardware and algorithm of supersonic PIV system were analyzed.
分析了超声速piv系统的硬件及算法应具备的性能。
PIV experiment is carried out on certain axial fan with and without external duct.
对某轴流通风机进行了有无外风筒的(开式)PIV实验。
Finally, some typical sections of the junctions have been measured using PIV technique.
此外还给出了对于干扰流场典型截面的PIV测量结果。
The PIV technique and auxiliary dye-tracer technique are used to display the flow field.
流场显示以PIV技术为主，辅以染料示踪技术。
The principle of fuzzy logic is applied to analyze the motion of particles in a PIV image.
文中将模糊分析的原理应用于分析粒子在一幅PIV图像中的运动情况。
In order to get clear and reliable PIV negative, many experimental methods have been improved.
为了获得清晰、可靠的piv底片，人们对实验方法作了很多改进。
In order to meet the research need of air flow in I. C. E., a set of PIV system has been developed.
本文针对内燃机缸内气流运动研究需要，在国内首次开发研制出一套内燃机缸内全流场PIV测速系统。
The incidence light source is very important for the PIV (particle image velocimetry) of bubble in water.
光源的选择对研究水中气泡界面的光强非常重要。
The experiments indicate that PIV technology could be used on the flow measurement of the rotating cavity.
依据实验给出旋涂工艺的简化模型，并运用旋转圆盘理论分析流体流动。
These conclusions also have been validated by our experiments of acoustical excitation and PIV measurement.
环形叶栅声激励和PIV测量的实验结果亦证实了这一结论。
The model can cooperate smoothly with the PIV and pressure sensor to detect the velocity, TSS and wall pressure;
实验模型能够较好地配合PIV和压力传感器进行流动分离区速度、湍流切应力和压力的定量检测；
Particle Image Velocimetry (PIV) plays an important role in the technology of flow field display and measurement.
在流场显示测量技术中，粒子图像测速(PIV)技术占有相当重要的地位。
PIV experimental study of flow structures of synthetic jet arrays which had different orifice spacing was carried out.
对不同出口间距零质量射流组的流场结构进行了PIV实验。
Based on the principle of PIV test, with tracing particles, the highspeed camera was adopted to record velocity field.
根据二维piv测试技术的原理，用高速摄像仪对各加热段炉膛进行示踪粒子拍摄和速度分布测量。
A pupil super-resolution technique based on the Rayleigh Criterion as a PIV index is studied and presented in this paper.
基于瑞利判据作为PIV指标的光瞳超分辨技术，可以在不增加光学系统口径的条件下提高系统分辨率。
This paper introduced the method of measuring water-entry flow field using PIV technique. Some test results are provided.
本文简单介绍了PIV测量物体入水初期流场的方法并给出了试验结果。
This paper studies Particle image Velocimetry (PIV) and its image measurement techniques in propellant application system.
本文探讨二维粒子图象测速(PIV)技术在应用系统中的研究与实现。
The paper presents some research works on the internal flow shock wave measurement of transonic compressor by PIV technique.
在跨音压气机试验台上进行了用PIV技术测量内流激波结构的试验研究。
The self-organization of vortices disturbed by different taps are measured both in wind tunnel by PIV and in water tunnel by LDV.
利用在一个机翼翼梢安装的翼梢小翼形成受扰动旋涡，在风洞和水洞中对受扰动涡的自组织过程进行了测量。
A study was performed on the PIV algorithm based on fast Fourier transformation (FFT), and the PIV program was compiled and verified.
在粒子图像测速原理的基础上研究了基于快速傅立叶变换的粒子图像测速算法，并编制算法程序进行验证。
The results in the next experiment investigation of PIV verify the conclusions of theory deducing and the experiment measurement exactly.
而对后期的PIV流动显形实验结果进行分析时，又进一步验证了理论推导以及实验测量所得结论的正确性。
In this paper, PIV (Particle Image Velocimetry) is applied to study the characteristic of in-cylinder flow field under different valve lifts.
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。
The flow field and temperature field of the uniformity phase fluid were measured by PIV and the steadystate method during the state of onflow.
用粒子成像测速技术（PIV）和稳态法分别测量均相流体在热管生物反应器中湍流时的流场、温度场；
Objectives to investigate the effectiveness and safety of umbilical vein catheters (UVC)and peripheral intravenous catheters(PIV) in neonates.
目的评价脐静脉置管术（UVC）和周围静脉留置针（PIV）在危重新生儿静脉输液中的临床效果。
The CFD technique and PIV were adopted to investigate the flow field and concentration distribution in Stirred Vessel with double-flat agitator.
利用CFD技术和PIV测量研究了搅拌器内双层桨叶不同位置的流场和浓度分布。
Based on technical requirements of PIV system, experiment setup was founded and dynamic characteristics of submerged water jet flow were studied.
根据二维piv技术的要求，建立了淹没射流流场研究的实验台架，并对井眼中流动的淹没射流的动力学流动进行了系统的测量。
Combining the merits of the traditional method and PIV method, it is proved that TJ-4 boundary layer wind tunnel comes up to the designed standard.
综合传统方法和PIV方法两种方法的优点，验证了TJ - 4边界层风洞的流场品质达到了设计要求。
Particle Image Velocimetry (PIV) Measurements were carried out on a 2-d flow field around the greenhouse in the atmospheric boundary layer wind tunnel.
在大气边界层风洞中，利用粒子图像速度场仪(PIV)对风绕过二维温室的流动进行了流场测量。
At the same time, the light reflection control and the symmetrical and steady dispersion of tracer particles are the key factors of the PIV measurement.
同时，分析得出激光反光的控制和示踪粒子的均匀稳定散播是实验成功的关键因素。
At the same time, the light reflection control and the symmetrical and steady dispersion of tracer particles are the key factors of the PIV measurement.
同时，分析得出激光反光的控制和示踪粒子的均匀稳定散播是实验成功的关键因素。
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