IROV holographic particle image velocimetry for 3D turbulent flow measurement

Hui Meng, Fazle Hussain

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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.

Original languageEnglish
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsSoyoung S. Cha, James D. Trolinger
Pages413-419
Number of pages7
StatePublished - 1995
EventOptical Techniques in Fluid, Thermal, and Combustion Flow - San Diego, CA, USA
Duration: Jul 10 1995Jul 13 1995

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume2546
ISSN (Print)0277-786X

Conference

ConferenceOptical Techniques in Fluid, Thermal, and Combustion Flow
CitySan Diego, CA, USA
Period07/10/9507/13/95

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  • Cite this

    Meng, H., & Hussain, F. (1995). IROV holographic particle image velocimetry for 3D turbulent flow measurement. In S. S. Cha, & J. D. Trolinger (Eds.), Proceedings of SPIE - The International Society for Optical Engineering (pp. 413-419). (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 2546).