Experimental study of internal mixing and near-bed dynamics induced by restricted stratified exchange flows

Magda Carr, Alan Cuthbertson, Janek Laanearu, Joel Sommeria, Jarle Berntsen, Madis-Jaak Lilover, Oyvind Thiem, Samuel Viboud

Research output: Chapter in Book/Report/Conference proceedingConference contribution


This paper presents details of an experimental study investigating internal flow and near-bed dynamics induced by restricted exchange flows over idealized, scaled obstructions, representing both submerged estuarine sand bars and fjordic sills. The experiments are being performed within a specially constructed rectangular channel sited within the new large diameter Coriolis Rotating Platform II at LEGI Grenoble. Both rigid and erodible obstructions, having idealized trapezoidal cross-section with smoothed edges, will be considered. Experimental measurements will focus on obtaining high-resolution velocity and density profiles in the vicinity of obstruction to observe and quantify the internal mixing and near-bed dynamics generated by exchange flows under both rotating and non-rotating conditions. It is anticipated that this study will result in improved understanding of parametric controls on interfacial mixing and entrainment/detrainment processes for restricted exchange flows in silled fjordic basins, as well as boundary layer processes associated sediment transport and bed morphological changes encountered in semi-enclosed estuaries.
Original languageEnglish
Title of host publicationProceedings of the HYDRALAB IV Joint User Meeting, Lisbon, July 2014.
PublisherHydralab IV
Number of pages5
Publication statusPublished - 1 Jun 2014
EventHydralab IV Joint User Meeting - Lisbon, Portugal
Duration: 1 Jun 20141 Jun 2014


ConferenceHydralab IV Joint User Meeting
Internet address


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