Suitability of optical techniques for investigating complex flows in difficult environments

Sohail H. Zaidi

doi:10.1117/12.293399

21 November 1997 Suitability of optical techniques for investigating complex flows in difficult environments

Sohail H. Zaidi

Proceedings Volume 3172, Optical Technology in Fluid, Thermal, and Combustion Flow III; (1997) https://doi.org/10.1117/12.293399
Event: Optical Science, Engineering and Instrumentation '97, 1997, San Diego, CA, United States

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.

Citation Download Citation

Sohail H. Zaidi "Suitability of optical techniques for investigating complex flows in difficult environments", Proc. SPIE 3172, Optical Technology in Fluid, Thermal, and Combustion Flow III, (21 November 1997); https://doi.org/10.1117/12.293399

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