Results 51 to 60 of about 3,379 (246)

Lagrangian numerical wave-current flume [PDF]

, 2015
Lagrangian formulation for surface waves with vorticity is used to create a numerical wave-current flume. The numerical flume is then used to reproduce a physical experiment on focused wave groups in sheared currents.
Stagonas, D, Simons, RR, Buldakov, E
core  

EXPERIMENTS ON BEACH PROFILE CHANGE WITH A LARGE WAVE FLUME

Coastal Engineering Proceedings, 1982
Two-dimensional beach profile changes were investigated with a newly constructed prototype-scale wave flume. The flume is 205 m long, 3.4 m wide and 6 m deep. Sand of two grain sizes was used in the experiments. Analysis of the results was made through use of the parameter C, introduced by Sunamura and Horikawa (1974) to classify beaches as either ...
Ryoichi Kajima, Takao Shimizu, Kohki Maruyama, Shozo Saito   +3 more
openaire   +2 more sources

River‐Scale Evaluation of a Floating LED Light Array for Behavioral Guidance of American Eel

River Research and Applications, EarlyView.
ABSTRACT Exploiting the sensory physiology of migratory fishes to guide them away from hazards like hydroelectric turbines is of interest to regulatory agencies and hydropower operators to achieve conservation and management goals. Here we describe a river‐scale experiment where out‐migrating adult American eel (Anguilla rostrata) were tracked ...
Chris K. Elvidge, M. E. Cole MacLeod, Daniel Hatin, Alexandre Guindon, René Dion, Scott Schlueter, Justin Ecret, Jana R. Lantry, Thomas C. Pratt, David Stanley, Jake K. L. La Rose, Paul T. Jacobson, Douglas Bradley, Steven J. Cooke   +13 more
wiley   +1 more source

Experiment on Free Overfall Measuring Flume in Rectangle Canal

工程科学与技术, 2015
:In open channels, free overfall is a situation where the flow separates from the rigid bed to form a free nappe due to a sudden drop in the channel bed, the relationship of the end-depth to the critical depth is constant, it could be used as a simple ...
chenxiaopan, 刘超, Lilongguo
doaj  

Experimental Study on Fine Sediment Infiltration (FSI) Processes in Different Gravel Mixtures

River Research and Applications, EarlyView.
ABSTRACT Fine sediment infiltration (FSI) can lead to riverbed clogging, thereby degrading important habitats for aquatic biota in the hyporheic interstitial zone of gravel‐bed rivers (e.g., by reducing oxygen availability). This stress on rivers may increase from anthropogenic influences and can be counteracted by artificial gravel augmentation to ...
Michael Paster, Gábor Fleit, Helmut Habersack, Christoph Hauer   +3 more
wiley   +1 more source

Bottom and Suspended Sediment Backscatter Measurements in a Flume—Towards Quantitative Bed and Water Column Properties

Journal of Marine Science and Engineering
For health and impact studies of water systems, monitoring underwater environments is essential, for which multi-frequency single- and multibeam echosounders are commonly used state-of-the-art technologies.
Thaiënne A. G. P. Van Dijk, Marc Roche, Xavier Lurton, Ridha Fezzani, Stephen M. Simmons, Sven Gastauer, Peer Fietzek, Chris Mesdag, Laurent Berger, Mark Klein Breteler, Dan R. Parsons   +10 more
doaj   +1 more source

Data set for Log jam formation at bridges and the effect on floodplain flow: A flume experiment

, 2020
Data set for Log jam formation at bridges and the effect on floodplain flow: A flume experiment Takaaki Okamoto | Hiroshi Takebayashi | Michio Sanjou | Ryuta Suzuki | Keiichi TodaJ Flood Risk Management. 2020;13 (Suppl.
Michio Sanjou (4340365), Takaaki Okamoto (8445264)   +1 more
core   +1 more source

Validation of a Particle Image Velocimetry Algorithm Through Comparative Field and Laboratory Analysis

River Research and Applications, EarlyView.
ABSTRACT Flow velocity measurement is fundamental to hydrological and hydraulic studies, providing essential data for streamflow estimation and river dynamics analysis. Traditional in situ methods like propeller gauges and acoustic Doppler current profilers are accurate but intrusive and labour‐intensive, while non‐intrusive image processing methods ...
Ghazaleh Nassaji Matin, Gareth Bradbury, Alan Puttock, Kirsty Frith, Diego Panici   +4 more
wiley   +1 more source

Key Bioturbator Species Within Benthic Communities Determine Sediment Resuspension Thresholds

Frontiers in Marine Science, 2021
Abundant research has shown that macrobenthic species are able to increase sediment erodibility through bioturbation. So far, however, this has been at the level of individual species.
Jaco C. de Smit, Jaco C. de Smit, Muriel Z. M. Brückner, Katherine I. Mesdag, Maarten G. Kleinhans, Tjeerd J. Bouma, Tjeerd J. Bouma   +6 more
doaj   +1 more source

Restoring Lateral Connectivity to Anthropogenic Riverscapes: Six Lessons From Stage Zero

River Research and Applications, EarlyView.
ABSTRACT Centuries of river modification, particularly straightening and incision, have severely reduced lateral connectivity between rivers and their floodplains. As a result, Stage 0 riverscapes, characterised by high lateral connectivity (e.g., anastomosing or wetland riverscapes), are now rare in anthropogenic landscapes.
Richard J. Mason, Matthew F. Johnson, Ben Eardley, Matthew J. Hemsworth, Arnaud Foret, Luca Mao, Matt Parr, Alan Puttock, Richard E. Brazier   +8 more
wiley   +1 more source