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Proceedings Paper

IROV holographic particle image velocimetry for 3D turbulent flow measurement
Author(s): Hui Meng; Fazle Hussain
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Paper Abstract

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.

Paper Details

Date Published: 29 September 1995
PDF: 7 pages
Proc. SPIE 2546, Optical Techniques in Fluid, Thermal, and Combustion Flow, (29 September 1995); doi: 10.1117/12.221560
Show Author Affiliations
Hui Meng, Kansas State Univ. (United States)
Fazle Hussain, Univ. of Houston (United States)

Published in SPIE Proceedings Vol. 2546:
Optical Techniques in Fluid, Thermal, and Combustion Flow
Soyoung Stephen Cha; James D. Trolinger, Editor(s)

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