Recent evolutions of imagery in fluid mechanics: From standard tomographic visualization to 3D volumic velocimetry.
Fiche publication
Date publication
mars 2006
Auteurs
Membres identifiés du Cancéropôle Est :
Dr BAILLY Yannick
Tous les auteurs :
Prenel JP, Bailly Y
Lien Pubmed
Résumé
The recent evolutions of the optical analysis of three-dimensional (3D) flows by means of light scattering and quantitative imagery are presented. In order to remove the intrinsic ambiguity of the well-known tomographic methods (how to obtain 3D information by using a 2D plane illumination?), the efficiency of polychromatic lightings is shown: the basic idea is to code the third dimension by the wavelength. Different approaches are described: discrete or continuous analysis, sequential or simultaneous recordings, and measurement of two or three velocity components (2C or 3C techniques). The most recent 3D velocimetry method using a rainbow lighting process (RVV-Rainbow Volumic Velocimetry) is presented. The main qualities and limitations of these different methods are discussed. (c) 2005 Elsevier Ltd. All rights reserved.
Référence
Opt Lasers Eng. 2006 Mar-apr;44(3-4):321-34.