%0 Journal Article
%T A Tsai's model based S-PIV method for velocity measurements in a turbulent Ekman layer
%+ Institut méditerranéen d'océanologie (MIO)
%+ Laboratoire des Écoulements Géophysiques et Industriels [Grenoble] (LEGI)
%A Sous, Damien
%A Sommeria, Joël
%< avec comité de lecture
%Z MIO:12-039
%@ 0955-5986
%J Flow Measurement and Instrumentation
%I Elsevier
%V 26
%P 102-110
%8 2012-08-01
%D 2012
%R 10.1016/j.flowmeasinst.2012.04.014
%K S-PIV
%K Ekman layer
%K Turbulence
%Z Engineering Sciences [physics]/Mechanics [physics.med-ph]/Fluids mechanics [physics.class-ph]
%Z Physics [physics]/Mechanics [physics]/Fluid mechanics [physics.class-ph]
%Z Engineering Sciences [physics]/Signal and Image processing
%Z Computer Science [cs]/Signal and Image Processing
%Z Sciences of the Universe [physics]/Earth Sciences/OceanographyJournal articles
%X This paper reports on laboratory experiments concerning frictional rotating turbulent boundary layers in spin-up flow over a flat horizontal bottom. Three-component velocity fields are obtained by Stereoscopic Particle Image Velocimetry. An original reconstruction algorithm, based on Tsai's camera model, has been developed on the basis of a linear approximation on the acquisition plane. The new technique, allowing any geometrical camera configuration, is validated using three-dimensional target translation test cases. Velocity measurements are thus performed on the Ekman layer, showing a remarkable agreement with the Ekman theoretical predictions in the laminar regime and providing original data on the turbulent regime.
%G English
%L hal-00725435
%U https://hal.science/hal-00725435
%~ INSU
%~ UGA
%~ UNIV-TLN
%~ CNRS
%~ UNIV-GRENOBLE1
%~ UNIV-AMU
%~ INPG
%~ OSUG
%~ LEGI
%~ MIO
%~ OSU-INSTITUT-PYTHEAS
%~ GIP-BE
%~ TESTUPPA
%~ MIO-OPLC