Year: 2016
Type: conference-paper
Abstract: A small scale physical model of a river and its bed \nwas built to study sediment transport. This model was installed \nthrough a CT scanner in order to validate a data acquisition \nsystem coupling a CT scan and a particle image velocimetry \n(PIV) system. The PIV structure is fixed to the scanner, which \nmoves along 2.6 meters rails. This combined system provides \nhigh spatial and temporal resolution measurements of bed \ndensity and fluid velocity. The data acquisition is time-synchronized \nand co-located greatly improving our \nunderstanding of the dynamics inside the scanned object. The \nbed topography and porosity as well as the fluid velocity profiles \nnear the bed were successfully derived. These parameters are \nessential to link hydrodynamic processes over the bed and \nsediment transport. The methodology holds promising \nadvancements in experimental sedimentology, and could also find \ninteresting applications in other non-medical fields.
Language: English
Subfield: Earth-Surface Processes
Field: Earth and Planetary Sciences
Domain: Physical Sciences
Open Access status: green
Funder: Ministère des Transports
OpenAlex ID: W2582371371