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(Article of periodic en Anglais - 2012)

Document title

Bed evolution measurement with flowing water in morphodynamics experiments

Authors(s) and Affiliation(s)

VISCONTI F. (1) ; STEFANON L. (2) ; CAMPOREALE C. (1) ; SUSIN F. (2) ; RIDOLFI L. (1) ; LANZONI S. (2) ;
(1) Dip. di Idraulica, Trasporti e Infrastrutture Civili, Politecnico di Torino, Turin, ITALIE
(2) Dip. di Ingegneria Idraulica, Marittima Ambientale e Geotecnica, Univ. di Padova, Padua, ITALIE

Abstract

A new approach for the profiling of movable sediment beds in laboratory experiments is presented. It couples a triangulation laser sensor and an ultrasonic level transmitter, and allows a non-intrusive, fast and accurate measurement of bed topography without stopping the experimental runs. The distortion of the laser beam due to the refraction at the water surface is corrected by contemporaneously measuring the elevation of the water surface through the ultrasonic level transmitter. Several tests, under either still- or flowing-water conditions, as well as increasing/decreasing water surface elevation, were carried out to evaluate the accuracy of the measurements. Finally, 2 relevant applications to movable bed experiments carried out under either lagoonal or fluvial conditions are presented that show the effectiveness of the proposed profiling technique

Source

Article of periodic

published at : Earth surface processes and landforms / ISSN 0197-9337 / CODEN ESPLDB

Editor : Wiley, Chichester - ROYAUME-UNI (1981)

Millesime : 2012, vol. 37, no8 [pp. 818-827]

Bibliographic references : 24 ref.

Collation : 13 fig., 1 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 17355

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/esp.3200

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2013
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