Modelling Intense Combined Load Transport in Open Channel
Granular flow is modelled under the following conditions: Steady-state uniform turbulent open-channel solid–liquid flow carrying combined load at high solids concentration above a plane mobile bed. In the combined load, a portion of transported particles is transported as collisional bed load and th...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-02-01
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| Series: | Water |
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| Online Access: | https://www.mdpi.com/2073-4441/14/4/572 |
| _version_ | 1797475930948501504 |
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| author | Václav Matoušek |
| author_facet | Václav Matoušek |
| author_sort | Václav Matoušek |
| collection | DOAJ |
| description | Granular flow is modelled under the following conditions: Steady-state uniform turbulent open-channel solid–liquid flow carrying combined load at high solids concentration above a plane mobile bed. In the combined load, a portion of transported particles is transported as collisional bed load and the rest as suspended load supported by carrier turbulence. In our modelling approach, we consider one-dimensional flow and take into account a layered structure of the flow with the intense combined load. Principles of kinetic theory of granular flow are employed together with the mixing-length theory of flow turbulence in order to predict distributions of solids concentration and velocity in sediment-water flow of the given flow depth and longitudinal slope in an open channel. Components of the model are tested and calibrated by results of our laboratory experiments with lightweight sediment in a recirculating tilting flume. |
| first_indexed | 2024-03-09T20:50:50Z |
| format | Article |
| id | doaj.art-9c422ed452464b4392b8ded94098cbda |
| institution | Directory Open Access Journal |
| issn | 2073-4441 |
| language | English |
| last_indexed | 2024-03-09T20:50:50Z |
| publishDate | 2022-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Water |
| spelling | doaj.art-9c422ed452464b4392b8ded94098cbda2023-11-23T22:34:05ZengMDPI AGWater2073-44412022-02-0114457210.3390/w14040572Modelling Intense Combined Load Transport in Open ChannelVáclav Matoušek0Faculty of Civil Engineering, Czech Technical University in Prague, 166 29 Prague, Czech RepublicGranular flow is modelled under the following conditions: Steady-state uniform turbulent open-channel solid–liquid flow carrying combined load at high solids concentration above a plane mobile bed. In the combined load, a portion of transported particles is transported as collisional bed load and the rest as suspended load supported by carrier turbulence. In our modelling approach, we consider one-dimensional flow and take into account a layered structure of the flow with the intense combined load. Principles of kinetic theory of granular flow are employed together with the mixing-length theory of flow turbulence in order to predict distributions of solids concentration and velocity in sediment-water flow of the given flow depth and longitudinal slope in an open channel. Components of the model are tested and calibrated by results of our laboratory experiments with lightweight sediment in a recirculating tilting flume.https://www.mdpi.com/2073-4441/14/4/572granular flowsheet flowsediment transporttilting flume experimentconcentration profile |
| spellingShingle | Václav Matoušek Modelling Intense Combined Load Transport in Open Channel Water granular flow sheet flow sediment transport tilting flume experiment concentration profile |
| title | Modelling Intense Combined Load Transport in Open Channel |
| title_full | Modelling Intense Combined Load Transport in Open Channel |
| title_fullStr | Modelling Intense Combined Load Transport in Open Channel |
| title_full_unstemmed | Modelling Intense Combined Load Transport in Open Channel |
| title_short | Modelling Intense Combined Load Transport in Open Channel |
| title_sort | modelling intense combined load transport in open channel |
| topic | granular flow sheet flow sediment transport tilting flume experiment concentration profile |
| url | https://www.mdpi.com/2073-4441/14/4/572 |
| work_keys_str_mv | AT vaclavmatousek modellingintensecombinedloadtransportinopenchannel |