Performances of Volume-PTV and Tomo-PIV

• 作者: Chang Jae Lee Deog Hee Doh Gyeong Rae Cho Kyeong Rok Moon
• 来源期刊: 流体动力学(英文)
• 学科: 医学
• 关键词: Volume-Particle-Tracking VELOCIMETRY Tomographic-Particle Image VELOCIMETRY Ring VORTEX Recovery Ratio
• 年，卷（期）: 2012,（4）
• 页码范围: 368-374
• 页数: 7页
• 分类号: R73

摘要

We constructed a volume particle-tracking velocimetry (Volume-PTV) algorithm for comparisons with the tomographic particle image velocimetry (Tomo-PIV) algorithm, in which the multiplicative algebraic reconstruction technique (MART) was adopted. Performance tests on both algorithms were conducted by using artificial images generated through numerical data sets. Standard data on an impinging jet were used to test the Volume-PTV algorithm, whereas ring vortex data were used to test the Tomo-PIV algorithm. The influence of the number of particles (particle density in volume) on the key factors of Volume-PTV, such as particle movements and particle neighborhoods, were investigated. Furthermore, the effects of particle density and sizes onto the recovery ratio of the vectors were evaluated.