Journal article
Spatio-temporal patterns of sediment particle movement on 2D and 3D bedforms
Experiments in fluids, Vol.59(6), pp.1-14
06/01/2018
DOI: 10.1007/s00348-018-2551-y
Abstract
An experimental study was conducted to explore sediment particle motion in an open channel and its relationship to bedform characteristics. High-definition submersed video cameras were utilized to record images of particle motion over a dune's length scale. Image processing was conducted to account for illumination heterogeneity due to bedform geometric irregularity and light reflection at the water's surface. Identification of moving particles using a customized algorithm was subsequently conducted and then the instantaneous velocity distribution of sediment particles was evaluated using particle image velocimetry. Obtained experimental results indicate that the motion of sediment particles atop dunes differs depending on dune geometry (i.e., two-dimensional or three-dimensional, respectively). Sediment motion and its relationship to dune shape and dynamics are also discussed.
Details
- Title: Subtitle
- Spatio-temporal patterns of sediment particle movement on 2D and 3D bedforms
- Creators
- Ryota Tsubaki - Nagoya UniversitySandor Baranya - Budapest University of Technology and EconomicsMarian Muste - University of IowaYuji Toda - Nagoya University
- Resource Type
- Journal article
- Publication Details
- Experiments in fluids, Vol.59(6), pp.1-14
- Publisher
- Springer Nature
- DOI
- 10.1007/s00348-018-2551-y
- ISSN
- 0723-4864
- eISSN
- 1432-1114
- Number of pages
- 14
- Grant note
- JP17K06574; JP17K06575 / JSPS KAKENHI Grant; Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT); Japan Society for the Promotion of Science; Grants-in-Aid for Scientific Research (KAKENHI) Chugoku Civil Engineering Foundation for Mutual Aid, Japan Foundation for River and Watershed Environment Management, Japan UNKP-17-4/III / New National Excellence Program of the Ministry of Human Capacities, Hungary
- Language
- English
- Date published
- 06/01/2018
- Academic Unit
- IIHR--Hydroscience and Engineering; Geographical and Sustainability Sciences
- Record Identifier
- 9984459635702771
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