TY - GEN
T1 - Fundamental issues and latest development in holographic particle image velocimetry
AU - Pu, Ye
AU - Cao, Lujie
AU - Meng, Hui
PY - 2002
Y1 - 2002
N2 - Holographic PIV (HPIV) is currently the most promising technique for truly instantaneous, three-dimensional (3D), three-component (3C) velocity field measurements for complex flows including turbulent and multiphase flows. This paper reports new understanding on some fundamental issues and challenges in HPIV including the complex 3D imaging characteristics, the extraction of full particle information (intensities, sizes, and locations) in 3D space, the extraction of particle displacements, and the huge data volume to process. The latest off-axis HPIV system will be presented, which incorporates the new understanding of imaging characteristics of particle holography, careful development of data processing algorithms, and a well-designed distributed parallel processing system. We will demonstrate capabilities of HPIV by a semi-time-series measurement of instantaneous 3D, 3C velocity fields in highly 3D vortical flow.
AB - Holographic PIV (HPIV) is currently the most promising technique for truly instantaneous, three-dimensional (3D), three-component (3C) velocity field measurements for complex flows including turbulent and multiphase flows. This paper reports new understanding on some fundamental issues and challenges in HPIV including the complex 3D imaging characteristics, the extraction of full particle information (intensities, sizes, and locations) in 3D space, the extraction of particle displacements, and the huge data volume to process. The latest off-axis HPIV system will be presented, which incorporates the new understanding of imaging characteristics of particle holography, careful development of data processing algorithms, and a well-designed distributed parallel processing system. We will demonstrate capabilities of HPIV by a semi-time-series measurement of instantaneous 3D, 3C velocity fields in highly 3D vortical flow.
UR - https://www.scopus.com/pages/publications/78249286548
U2 - 10.1115/IMECE2002-33171
DO - 10.1115/IMECE2002-33171
M3 - Conference contribution
AN - SCOPUS:78249286548
SN - 0791836576
SN - 9780791836576
T3 - ASME International Mechanical Engineering Congress and Exposition, Proceedings
SP - 33
EP - 42
BT - Fluids Engineering
PB - American Society of Mechanical Engineers (ASME)
ER -