CFD modelling of sediment transport: case study of the Castle River, QC**

河流中的泥沙运输是水资源管理者和工程师共同关心的问题，因为如果不充分考虑，它可能导致工程结构的破坏（例如，由于桥墩冲刷而导致的桥梁破坏）。许多常用的CFD代码包含泥沙输送模块，可以与标准流量计算一起使用。总的来说，CFD输沙模型在模拟河流时的准确性还没有得到充分的评估。J.F. Sabourin et associassocis inc. （JFSA）拥有一维和二维流体动力学建模方面的专业知识，并希望将这一专业知识扩展到三维（3D）计算流体动力学（CFD），特别是涉及泥沙输送的项目。****拟建项目的主要目标是在几种CFD代码（例如，OpenFOAM, FLOW-3D, Delft3D）中演示和比较目前可用的沉积物输移模型的实现。模型验证最初将在一个小规模的实验水槽中进行，随后将利用2018年JFSA从城堡河收集的独特现场数据集。**** JFSA和UdeS之间的合作将为CFD代码如何有效地应用于涉及河流系统沉积物运输的复杂水利工程提供见解。所获得的知识将使日本金融厅能够投标以前无法获得的项目，并使日本金融厅在投标中更具竞争力，从而促进其未来的生存能力。因此，确保像JFSA这样的加拿大国有公司的竞争力符合加拿大和加拿大经济的利益

Sediment transport in rivers is a common concern for water resources managers and engineers as it can lead to failure of engineering structures if insufficiently accounted for (e.g., bridge failure due to pier scour). Many commonly used CFD codes incorporate sediment transport modules, which can be used along with standard flow calculations. In general, the strengths and weaknesses of CFD sediment transport models have not been fully assessed for their accuracy in modeling rivers. J.F. Sabourin et associés inc. (JFSA) has expertise in 1D and 2D hydrodynamic modeling and would like to broaden this expertise to three-dimensional (3D) computational fluid dynamics (CFD) and in particular to projects involving sediment transport. ****The principal objective of the proposed project is to demonstrate and compare the implementation of currently available sediment transport models in several CFD codes (e.g., OpenFOAM, FLOW-3D, Delft3D). Model validation will initially be performed in a small-scale experimental flume and subsequently take advantage of the unique field data set collected by JFSA in 2018 from the Castle River.****This collaboration between JFSA and UdeS will provide insights into how CFD codes can be effectively employed for complex hydrotechnical projects involving sediment transport in river systems. The knowledge gained will enable JFSA to bid on previously unattainable projects and allow JFSA to be more competitive in its bid thus promoting its future viability. Assuring the competitiveness of Canadian owned companies like JFSA is thus in the interest of Canada and Canada's economy.**