A one dimensional simulation model of suspended sediment transport in a tidal river was developed with erosion, deposition, and thickening processes of sediments, and inflow from tributaries. This model uses the explicit leapfrog method and its lower end boundary of the river is extended into the sea to close the boundary for calculation. Laboratory experiments were performed to determine erosional and depositional rates of sediments and to study the sediment thickening process in the river under various concentrations of chlorinity and suspended solids. Numerical simulation results with the parameter values obtained experimentally did not show good agreement with observed data. Modifying the parameter values according to physical phenomena was necessary to obtain good agreement in between. After the modification, computation results during a fortnightly cycle explain satisfactorily the sediment transport phenomena in this river.
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Research Article|
June 01 1988
Development of a New Simulation Method for Suspended Sediment Transport in a Tidal River
Tohru Futawatari;
Tohru Futawatari
*Department of Civil Engineering Hydraulics, Faculty of Engineering, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka, 812, Japan
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Tetsuya Kusuda;
Tetsuya Kusuda
*Department of Civil Engineering Hydraulics, Faculty of Engineering, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka, 812, Japan
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Kenichi Koga;
Kenichi Koga
**Department of Civil Engineering, Faculty of Science and Engineering, Saga University, 1 Honjyou, Saga, 840, Japan
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Hiroyuki Araki;
Hiroyuki Araki
**Department of Civil Engineering, Faculty of Science and Engineering, Saga University, 1 Honjyou, Saga, 840, Japan
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Teruyuki Umita;
Teruyuki Umita
***Department of Civil Engineering, Faculty of Engineering, Iwate University, 4-3-5 Ueda, Morioka, 020, Japan
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Katsuhiro Furumoto
Katsuhiro Furumoto
****Department of Civil Engineering, Faculty of Engineering, Nagasaki University, 1-14 Bunkyou, Nagasaki, 852, Japan
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Water Sci Technol (1988) 20 (6-7): 103–112.
Citation
Tohru Futawatari, Tetsuya Kusuda, Kenichi Koga, Hiroyuki Araki, Teruyuki Umita, Katsuhiro Furumoto; Development of a New Simulation Method for Suspended Sediment Transport in a Tidal River. Water Sci Technol 1 June 1988; 20 (6-7): 103–112. doi: https://doi.org/10.2166/wst.1988.0194
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