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Proceedings Paper

Suitability of optical techniques for investigating complex flows in difficult environments
Author(s): Sohail H. Zaidi
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Paper Abstract

In recent years, laser based optical techniques have been extensively used in industry to investigate flow. The main application areas vary from complex flow fields in rotating turbo machines to complicated two-phase gas/liquid and liquid/liquid flows. Several measuring systems, based on optical techniques, are commercially available which include laser doppler system, phase doppler system, laser diffraction system and scanning laser microscope. The choice of the measuring system mainly depends on the information required and the nature of flow involved. This paper describes the limitations and the general problems of some of these measuring techniques. Results from several experimental rigs have been presented and in some cases measurements from two different optical systems have been compared for identical flow conditions. The discrepancy in results have been explained to justify the use of these techniques.

Paper Details

Date Published: 21 November 1997
PDF: 12 pages
Proc. SPIE 3172, Optical Technology in Fluid, Thermal, and Combustion Flow III, (21 November 1997); doi: 10.1117/12.293399
Show Author Affiliations
Sohail H. Zaidi, Univ. of Nottingham (United Kingdom)

Published in SPIE Proceedings Vol. 3172:
Optical Technology in Fluid, Thermal, and Combustion Flow III
Soyoung Stephen Cha; James D. Trolinger; Masaaki Kawahashi, Editor(s)

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