TY - GEN
T1 - IROV holographic particle image velocimetry for 3D turbulent flow measurement
AU - Meng, Hui
AU - Hussain, Fazle
PY - 1995
Y1 - 1995
N2 - Holographic particle image velocimetry (HPIV) encounters problems such as intrinsic speckle noise, external noise and aberration, and practical restrictions in test flow volume or media. The novel technique, In-line recording off-axis viewing (IROV), uses a single laser beam to record a hologram which is then viewed off axis during reconstruction. It combines advantages of both in-line and off-axis holography, achieving high spatial information capacity, low noise, and practicality. Instantaneous velocity vector field in the 3D flow of an unstable vortex ring in water has been measured by IROV. The vorticity distribution and circulation as a function of radius from the vortex core center are extracted from the 3D velocity field.
AB - Holographic particle image velocimetry (HPIV) encounters problems such as intrinsic speckle noise, external noise and aberration, and practical restrictions in test flow volume or media. The novel technique, In-line recording off-axis viewing (IROV), uses a single laser beam to record a hologram which is then viewed off axis during reconstruction. It combines advantages of both in-line and off-axis holography, achieving high spatial information capacity, low noise, and practicality. Instantaneous velocity vector field in the 3D flow of an unstable vortex ring in water has been measured by IROV. The vorticity distribution and circulation as a function of radius from the vortex core center are extracted from the 3D velocity field.
UR - http://www.scopus.com/inward/record.url?scp=0029530192&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:0029530192
SN - 0819419052
SN - 9780819419057
T3 - Proceedings of SPIE - The International Society for Optical Engineering
SP - 413
EP - 419
BT - Proceedings of SPIE - The International Society for Optical Engineering
A2 - Cha, Soyoung S.
A2 - Trolinger, James D.
T2 - Optical Techniques in Fluid, Thermal, and Combustion Flow
Y2 - 10 July 1995 through 13 July 1995
ER -