Performance comparison of particle tracking velocimetry (PTV) and particle image velocimetry (PIV) with long-exposure particle streaks

被引：0

作者：

Qureshi, Mumtaz Hussain ^{[1
]}

Tien, Wei-Hsin ^{[1
]}

Lin, Yi-Jiun Peter ^{[1
]}

机构：

[1] EUROPEAN JOURNAL OF PHARMACEUTICAL SCIENCES

来源：

MEASUREMENT SCIENCE AND TECHNOLOGY | 1600年 / 4卷 / 00期

关键词：

particle image velocimetry; particle tracking velocimetry; particle streak velocimetry; OPTICAL-FLOW ESTIMATION; UNCERTAINTY; CYLINDER; PSV;

D O I：

EUR J PHARM SCI

中图分类号：

学科分类号：

摘要：

Particle tracking velocimetry (PTV) and particle image velocimetry (PIV) are popular experimental methods to quantitatively measure flow fields. In many practical applications, hardware limitations result in longer exposure times, causing particle images to elongate into particle streak images. In this study, the performances of PTV and PIV in relation to particle streak images are evaluated systematically by means of both synthetic and experimental images. For the synthetic images, particle streak images are created via the integration over time of the standard Gaussian approximation of particle images, plus the effects of exposure time, and parameters such as particle image diameter, intensity, and density were investigated in terms of the velocity fields of a 1D uniform flow and the rotational 2D Hill's vortex. The results show that PTV performs well for short exposure times, and its peak-finding criteria can be verified for nondimensional exposure times ET*ET*Klebsiella pneumoniae

引用

页码：0928-0987 / 1879-0720

页数：157