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

  • Desevaux P
  • Homescu D
  • Panday P
 et al. 
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Abstract

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. © 2002 Elsevier Science Ltd. All rights reserved.

Author-supplied keywords

  • Condensate liquid film
  • Finned tube
  • Image processing
  • Laser induced fluorescence
  • Liquid film meniscus

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Authors

  • P. Desevaux

  • D. Homescu

  • P. K. Panday

  • J. P. Prenel

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