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 language | English (US) |
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| Title of host publication | Proceedings of SPIE - The International Society for Optical Engineering |
| Editors | Soyoung S. Cha, James D. Trolinger |
| Pages | 413-419 |
| Number of pages | 7 |
| Volume | 2546 |
| State | Published - Dec 1 1995 |
| Event | Optical Techniques in Fluid, Thermal, and Combustion Flow - San Diego, CA, USA Duration: Jul 10 1995 → Jul 13 1995 |
Other
| Other | Optical Techniques in Fluid, Thermal, and Combustion Flow |
|---|---|
| City | San Diego, CA, USA |
| Period | 7/10/95 → 7/13/95 |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Computer Science Applications
- Applied Mathematics
- Electrical and Electronic Engineering