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基于单曝光激光层析图像的粒子速度测量系统

, PP. 56-60

Keywords: 激光层析,单帧,粒子图像测速

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Abstract:

首先对目前的PIV(ParticleImagingVelocimetry)技术进行了总结,针对该系统设备复杂、价格昂贵的现实,提出了一种利用对单次曝光的流场空间域激光层析图像进行两次傅立叶变换后获得的频域图像求得最大互相关系数的二维速度场测量的新思路.实验表明利用该方案有可能开发出针对小速度测量范围的实用粒子图像测速仪.

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