Interface measurement technique for liquid film flowing inside small grooves by laser induced fluorescence

During the recent past, an optical investigation method of liquid films flowing within grooves of small dimensions, was developed by our research team. This non-intrusive method, based on the visualization of a transverse flow section, uses the laser induced fluorescence and image processing techniq...

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Bibliographic Details
Published in:Applied thermal engineering 2002-04, Vol.22 (5), p.521-534
Main Authors: Desevaux, P, Homescu, D, Panday, P.K, Prenel, J.P
Format: Article
Language:English
Subjects:
Applied sciences
Condensate liquid film
Energy
Energy. Thermal use of fuels
Exact sciences and technology
Finned tube
Fluorescence
Heat transfer
Image processing
Isotherms
Laser applications
Laser induced fluorescence
Liquid film meniscus
Mass transfer
Theoretical studies. Data and constants. Metering
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Summary:During the recent past, an optical investigation method of liquid films flowing within grooves of small dimensions, was developed by our research team. This non-intrusive method, based on the visualization of a transverse flow section, uses the laser induced fluorescence and image processing techniques in order to characterize the geometry of the liquid–gas interface. This article proposes to describe the principle and the practical application of this method and to present its possibilities through a certain number of applications carried out within our laboratory on isothermal flows and two-phase flows running in small grooves.
ISSN:1359-4311
DOI:10.1016/S1359-4311(01)00105-3