Performances of Volume-PTV and Tomo-PIV  

作　　者：Deog Hee Doh Chang Jae Lee Gyeong Rae Cho Kyeong Rok Moon 

机构地区：[1]Division of Mechanical and Energy Systems Engineering, Korea Maritime University, Busan, Korea [2]LG Electronics, Home Appliance, Changwon, Korea

出　　处：《Open Journal of Fluid Dynamics》2012年第4期368-374,共7页流体动力学（英文）

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.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.

关 键 词：Volume-Particle-Tracking VELOCIMETRY Tomographic-Particle Image VELOCIMETRY Ring Vortex Recovery Ratio 

分 类 号：R73[医药卫生—肿瘤]