Coherent gradient sensing interferometry: application in convective fluid medium for tomographic measurements

Coherent gradient sensing interferometry: application in convective fluid medium for tomographic... In this work, a measurement technique based on a single-beam coherent gradient sensing (CGS) interferometer is used to obtain line-of-sight projections of a 3-D temperature field in a convective fluid medium. Due to its inherent insensitivity to vibrations, simple and cost effective optical layout, and, most importantly, the absence of a separate reference beam, CGS is an attractive choice for measurements in convective fluids. In the present study, line-of-sight interferometric projections of a differentially heated water medium in a cylindrical cavity are presented for a cavity aspect ratio (diameter/height) of 3.9. The 3-D temperature field is then obtained using the line-of-sight interferometric projections with a 3-D tomographic reconstruction algorithm. The temperature field obtained shows the absence of a radial-symmetric pattern at a Rayleigh number of 1.6×105, which is in agreement with observations from the literature. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Experiments in Fluids Springer Journals

Coherent gradient sensing interferometry: application in convective fluid medium for tomographic measurements

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Publisher
Springer-Verlag
Copyright
Copyright © 2004 by Springer-Verlag
Subject
Engineering; Engineering Fluid Dynamics; Fluid- and Aerodynamics; Engineering Thermodynamics, Heat and Mass Transfer
ISSN
0723-4864
eISSN
1432-1114
D.O.I.
10.1007/s00348-004-0887-y
Publisher site
See Article on Publisher Site

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