LaVisionFlowMaster-TR时间分辨粒子成像测速系统(TR-PIV) 高速抛射体穿透沙层的实验研究

点击查看下载LaVisionFlowMaster-TR时间分辨粒子成像测速系统(TR-PIV) 高速抛射体穿透沙层的实验研究相关资料，进一步了解产品。

The dynamics associated with a long rod projectile, travelling at high velocity, penetrating a
heterogeneous target has long been an active research area. Historically both analytic and
numeric models have assumed a continuous target medium in order to predict the performance of the penetrator-target system, even in cases where the target is composed of concrete, foam or a granular porous medium such as sand. Continuum models fail to capture the complicated grain level response within the heterogeneous target which can result in asymmetric loading of the projectile leading to variations in projectile performance. In this work a series of experiments were conducted in order to investigate the penetration dynamics of loose sand, specifically with a goal of building a better understanding of the grain level dynamics. High speed photography coupled with a particle image velocimetry (PIV) technique were used to capture both the grain level and bulk response of the penetration event. Experiments were conducted over a velocity range of 30 to 100 m/s using both cylindrical and spherical projectiles. The results indicate that variations in the projectile size and shape effect cavity formation and that cavity formation occurs nearly 25 times slower than the projectile velocity.

     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。

LaVisionFlowMaster-TR时间分辨粒子成像测速系统(TR-PIV) 高速抛射体穿透沙层的实验研究信息由北京欧兰科技发展有限公司为您提供，如您想了解更多关于LaVisionFlowMaster-TR时间分辨粒子成像测速系统(TR-PIV) 高速抛射体穿透沙层的实验研究报价、型号、参数等信息，欢迎来电或留言咨询。

注：该产品未在中华人民共和国食品药品监督管理部门申请医疗器械注册和备案，不可用于临床诊断或治疗等相关用途