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<p>The article highlights the role of numerical modelling in research of the CD-Laboratory “Sediment research and -management”. Numerical models and their application are presented to investigate sediment transport, morphodynamics, and the ecological functions of water bodies. The application of modelling tools in basic research enables the deciphering of the mechanisms of the incipient motion of sediment grains and the transport of suspended particles with the flow. Applied research shows that both groynes and gravel islands have significant impacts on the hydrodynamics and morphodynamics of waterbodies. Groynes contribute to achieving morphological equilibrium and bed stabilization, while gravel islands offer multifunctional benefits, including improving habitat availability and regulating low water levels. The results also emphasize the importance of choosing appropriate model scales to minimize scale effects and increase the accuracy of the models. The insights gained contribute to a&#xa0;broader knowledge base of ecological hydraulic engineering measures in rivers and reservoirs and can be considered in future planning.</p>

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Vom Einzelkorn über den Fluss zum Stauraum – Beitrag der numerischen Modellierung zu Sedimentforschung und -management

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年2月7日

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  • Michael Tritthart,
  • Helmut Habersack,
  • Christoph Hauer

摘要

The article highlights the role of numerical modelling in research of the CD-Laboratory “Sediment research and -management”. Numerical models and their application are presented to investigate sediment transport, morphodynamics, and the ecological functions of water bodies. The application of modelling tools in basic research enables the deciphering of the mechanisms of the incipient motion of sediment grains and the transport of suspended particles with the flow. Applied research shows that both groynes and gravel islands have significant impacts on the hydrodynamics and morphodynamics of waterbodies. Groynes contribute to achieving morphological equilibrium and bed stabilization, while gravel islands offer multifunctional benefits, including improving habitat availability and regulating low water levels. The results also emphasize the importance of choosing appropriate model scales to minimize scale effects and increase the accuracy of the models. The insights gained contribute to a broader knowledge base of ecological hydraulic engineering measures in rivers and reservoirs and can be considered in future planning.