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한국수자원학회 / v.6, no.1, 2005년, pp.17-30 
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( NUMERICAL MODELLING OF SEDIMENT TRANSPORT IN CONNECTION WITH ARTIFICIAL GRAIN FEEDING ACTIVITIES IN THE RIVER RHINE ) |
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| 초 록 |
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| The bed evolution of the stretch of the River Rhine between km-812.5 and km-821.5 is characterised by general bed degradation as a result of the river training works and dredging activities of the last two centuries. The degradation of the river bed affects the water levels, and so the navigation conditions. To combat the erosion of the river bed with the aim to keep up the shipping traffic and to avoid the ecological system damages due to water level reductions, sand-gravel-mixtures were added to the river (so called artificial grain feeding activities). This paper presents the results of an application of a graded sediment transport model in order to study morpholodynamical characteristics due to artificial grain feeding activities in the river stretch. The finite element code TELEMAC2D was used for flow calculation by solving the 2D shallow water equation on non-structured grids. The sediment transport module SISYPHE has been developed for graded sediment transport using a multiple layer model. The needs to apply such graded sediment transport approaches to study morphological processes in the domain are discussed. The calculations have been carried out for the case of middle water flow and different size-fraction distributions. The results show that the grain feeding process could be well simulated by the model. |
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| 키워드 |
| Numerical Model;Graded sediment;Morphodynamical simulation;Rhine River; |
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Water Engineering Research / v.6, no.1, 2005년, pp.17-30
한국수자원학회
ISSN : 1229-6503
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO200531234555128)
언어 : 영어 |
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| 논문 제공 : KISTI 한국과학기술정보연구원 |
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