Abstract: The application of non-intrusive techniques has been sought in experimental studies involving complex hydraulic phenomena. In this sense, in the present study an ultrasonic sensor and a high speed camera were used for measurements in hydraulic jumps, in order to evaluate the free-surface characteristics. The free surface was identified in the images using relatively simple procedures of image processing. The proposed methodology for image analysis is relatively robust and produces the mean longitudinal interface profile compatible to that obtained with the ultrasonic sensor. The results of the present study include mean free surface profile, time evolution of the free surface and toe oscillation.
Referência:
http://espace.library.uq.edu.au/view/UQ:329760
http://espace.library.uq.edu.au/view/UQ:329760
Chanson, H., and Toombes, L. (2014). "Hydraulic Structures and Society - Engineering Challenges and Extremes." Proceedings of the 5th IAHR International Symposium on Hydraulic Structures (ISHS2014), 25-27 June 2014, Brisbane, Australia, H. Chanson and L. Toombes Editors, The University of Queensland, Brisbane, Australia, 359 pages (ISBN 978-1-74272-115-6).
