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Visualization of Two-dimensional Flows by a Liquid (Soap) Film Tunnel

Gharib, M. and Beizaie, M. (1999) Visualization of Two-dimensional Flows by a Liquid (Soap) Film Tunnel. Journal of Visualization, 2 (2). pp. 119-126. ISSN 1343-8875.

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Experimentally produced two-dimensional flows have become possible in recent years due to the invention of Liquid Film Tunnel (LFT) in 1987 by Gharib and Derango. This simple, inexpensive, yet powerful device, which we have improved extensively over the last decade, can generate a variety of flows. Liquid (soap) films can be visualized through light interference effects produced by small variations in the film thickness. Flow-disturbing objects such as cylinders, wedges, and air bubbles create these variations. Monochromatic visualization of these thickness variations will render phenomenally accurate graphic information about the flow patterns thus produced. Under a polychromatic light, these interference effects can be spectacular, due to reflection of different colors by different isothickness regions.

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Additional Information:© 1999 The Visualization Society of Japan and Ohmsha, Ltd. Received 17 February 1999; Revised 15 June 1999. The authors wish to thank Professor Karol Mysels for his valuable advice and encouragement. This work was supported by National Science Foundation (NSF Contract MSM 88-20182) at University of California, San Diego.
Funding AgencyGrant Number
NSFMSM 88-20182
Non-Subject Keywords:liquid (soap) film tunnel (LFT), two-dimensional flow, refraction
Issue or Number:2
Record Number:CaltechAUTHORS:20130912-094526107
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:41278
Deposited By: Tony Diaz
Deposited On:12 Sep 2013 23:01
Last Modified:03 Oct 2019 05:47

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