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TECHNICAL BRIEFS

Refractive-Index-Matching Laser Velocimetry for Complex, Isothermal Flows

[+] Author and Article Information
B. E. Thompson, O. Bouchery, K. D. Lowney

Department of Mechanical Engineering, Aeronautical Engineering and Mechanics, Rensselaer Polytechnic Institute, Troy, NY 12180-3590

J. Fluids Eng 120(1), 204-207 (Mar 01, 1998) (4 pages) doi:10.1115/1.2819650 History: Received December 09, 1994; Revised October 09, 1997; Online December 04, 2007

Abstract

Refractive-Index-Matching Laser Velocimetry (RIMLV) obtains velocity distributions inflow through complex geometries. Laser velocimetry is used to measure the flow of a constant-temperature mixture that has the refractive index of acrylic models. This mixture can be used to obtain duct Reynolds numbers in the turbulent regime at moderate expense. Measurements can be obtained at desired locations, specifically inside complex models even if laser beams pass through multiple curved surfaces, which is advantageous when comparing measured and calculated results.

Copyright © 1998 by The American Society of Mechanical Engineers
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