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《水动力学研究与进展B辑(英文版)》 2008-06
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AN IMPROVED PTV SYSTEM FOR LARGE-SCALE PHYSICAL RIVER MODEL

TANG Hong-wu, CHEN Cheng, CHEN Hong, HUANG Jian-tong College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, China,  
To measure the surface flow in a physical river model, an improved system of Large-Scale Particle Tracking Velocimetry (LSPTV) was proposed and the elements of the PTV system were described. Usually the tracer particles of a PTV system seeded on water surface tend to form conglomerates due to surface tension of water. In addition, they can not float on water surface when water flow is shallow. Ellipsoid particles were used to avoid the above problems. Another important issue is particle recognition. In order to eliminate the influence of noise, particles were recognized by the processing of multi-frame images. The kernel of the improved PTV system is the algorithm for particle tracking. A new 3-frame PTV algorithm was developed. The performance of this algorithm was compared with the conventional 4-frame PTV algorithm and 2-frame PTV algorithm by means of computer simulation using synthetically generated images. The results show that the new 3-frame PTV algorithm can recover more velocity vectors and have lower relative error. In addition, in order to attain the whole flow field from individual flow fields, the method of stitching individual flow fields by obvious marks was worked out. Then the improved PTV system was applied to the measurement of surface flow field in Model Yellow River and shows good performance.
【Fund】: Project supported by the National Natural Science Foundation of China (Grant Nos. 50479068 50779014);; the Technological Innovation Project of Graduate students in Jiangsu Province (Grant No.1306014);; the Project of “Six Talent Peak” of Jiangsu Province (Grant No. 07-A-006).
【CateGory Index】: O353.5
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【Co-citations】
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1 X. Li G. Wang Z. Yu Department of Thermal Energy Engineering, Beijing Institute of Technology, 100081 Beijing, ChinaX.Li Department of Nuclear Science and Engineering,North China Electric Power University, 102206 Beijing, ChinaW. Shyy Department of Aerospace Engineering, University of Michigan,Ann Arbor, MI 48109, USA;Multiphase fluid dynamics and transport processes of low capillary number cavitating flows[J];力学学报(英文版);2009-02
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9 DONG Xue-Qing WANG Jian-Wen HAN Xiao-Liang GAO Zhi-Ying LIU Dong-Dong XIN Jiletu QIU Lian-Jun (School of Energy & Power Engineering,Inner Mongolia University of Technology,Huhhot 010051,Inner Mongolia);INVESTIGATION OF FLUID FIELD IN WIND TURBINE WITH TIP VANE[J];Journal of Engineering Thermophysics;2009-10
10 GAO Zhi-Ying~(1,2) WANG Jian-Wen~(1,2) DONG Xue-Qing~(1,2) HAN Xiao-Liang~3 BAI Yang~1 YOU Zhi-Gang~1 (1.School of Energy and power Engineering,Inner Mongolia University of Technology,Huhhot 010051,China; 2.Inner Mongolia Autonomous Region's Renewable Energy Key Laboratory,Huhhot 010051,China; 3.Inner Mongolia Power Exploration&Design Institute,Huhhot 010020,China );PIV EXPERIMENT ON TIP VORTEX FLOW OF HORIZONTAL AXIS WIND TURBINE[J];Journal of Engineering Thermophysics;2010-03
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1 D.G.Yan,C.Yang~*,X.Y.Huang,Y.C.Lam School of Mechanical and Aerospace Engineering,Nanyang Technological University,Singapore 639798;Diagnosis of Frequency-Dependent Electrokinetic Flow in Microfluidic Channels[A];[C];2007
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4 Tsu-Hung Huang~1 Jyh-Jong Sheen~1 Shenq-Yuh Jaw~2 (1.Department of Mechanical and Mechatronic Engineering College of Engineering National Taiwan Ocean University,Keelung; 2.Department of Systems Engineering and Naval Architecture College of Engineering National Taiwan Ocean University,Keelung);High-resolution micro particle Image velocimetry using an annular condenser[A];[C];2008
5 LI Yong-qian, XU Zheng, LIU Chong, WANG Li-ding, CHEN Yang MST, School of ME, Da Lian University of Technology, Dalian, 116023, China;Digital Particle Image Velocimetry Systems for Electrokinetic Microfluidic Devices[A];[C];2004
6 FU Xin, XIE Hai-Bo, YANG Hua-Yong (State Key Laboratory of Fluid Power Transmission and Control, Mechanical Department, Zhejiang University, Hangzhou 310027, China);Micro-DPIV Technology and Its Application in Flow Visualization of Micro Valveless Pump[A];[C];2004
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