点击查看下载粒子测速仪FlowMaster-TRLaVision 采用粒子图像测速来测量间隔区填充管道内液体和液体/气体流动液体速度场分布形态相关资料，进一步了解产品。

Liquid and liquid/gas flows through spacer filled channels were studied using ParticleImagingVelocimetry (PIV)   to provide experimental support for velocity distributions obtained from Computational Fluid Dynamics studies available in the literature. It is shown that PIV is a suitable technique for measuring velocity profiles in spacer filled channels, although care has to be taken when interpreting the results.
PIV measurements were carried out for an entire flow cell(5cm×15 cm), a smaller area of roughly 7mm×8mm and for a single spacer cell(2.5mm×3mm). The experimental results show that fluid flow is well distributed across the entire flow cell in the case of single-phase flow. The recordings of the single spacer cell showed that liquid flow is mainly parallel to the spacer filaments and therefore the direction of flow changes 90◦ over the height of the channel. Introduction of air bubbles introduced strong local velocity gradients.The liquid velocity in two-phase flows is shown to be more unsteady than in the case of single-phase flow, which is advantageous when trying to prevent fouling or concentration polarization.

     FlowMaster High-Speed 系统为流体动力学分析提供了新的研究手段。它同时提供了基于数字PIV的空间流场信息和每一点随时间的演化信息。
 测试系统功能和性能指标：
 系统功能：

1.   系统可以测量速度及加速度场
2.   湍流过程的脉动参量。
3.   提供随时间演化的速度场及其相关信息
4.   获得随时间变化的湍流信息等。
5.   基于时间域的本征正交分解——POD-模式分解
6.   漩涡结果特性随时间的变化规律
7.   时空相关
8.   流动结构跟踪
9.   能量谱
10.   加速度场
11.   流动的时间尺度。
      系统指标：
12.   LaVision提供的FlowMaster
      High-Speed系统包含根据尖端技术设计的全数字化高速相机，拍摄帧率在1k x 1k像素分辨率下可以达到 5
      kHz，降低图像分辨率拍摄帧率可以达到100 kHz。
13.   高重复频率单腔或双腔固体激光器，每脉冲能量可以达到50 mJ。
14.   所有硬件部件都可以DaVis软件包集成和控制。