EPJ Web of Conferences
Volume 6, 2010ICEM 14 – 14th International Conference on Experimental Mechanics
|Number of page(s)||8|
|Published online||10 June 2010|
Stereoscopic measurement of free surface flows
Institut P’, CNRS - Université de Poitiers - ENSMA, UPR 3346
Département Fluides, Thermique, Combustion SP2MI - Téléport
Boulevard Marie et Pierre
a e-mail: email@example.com
The present paper adresses the problem of combined three-dimensionnal measurements of shape and velocity of moving free surfaces. A measurement method based on the cross-correlation of image pairs obtained from a calibrated stereoscopic vision system is presented. The underlying concept of the method consists in the generation of parametric shape and displacement forms which are directly projected on the camera models. This procedure is then integrated in an iterative optimization process so that elevation, orientation, curvature and displacement of each surface subset are accurately estimated. Application is made on inclined plane ﬂows of complex non-Newtonian ﬂuids as an alternative to conventionnal rheometric devices.
© Owned by the authors, published by EDP Sciences, 2010
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