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

河流中的泥沙输送是水资源管理人员和工程师共同关心的问题，因为如果没有充分考虑，泥沙输送可能导致工程结构的失效(例如，由于桥墩冲刷而导致的桥梁失效)。许多常用的CFD程序包含泥沙输送模块，这些模块可以与标准水流计算一起使用。总的来说，CFD泥沙输运模型在模拟河流方面的准确性还没有得到充分的评估。J.F.Sabourin et associéS公司在一维和二维流体动力学建模方面拥有专业知识，并希望将这种专业知识扩展到三维计算流体力学，特别是涉及泥沙输运的项目。*拟议项目的主要目标是演示和比较几个CFD程序(如OpenFOAM、FLOW-3D、Delft3D)中目前可用的泥沙输运模型的实施情况。模型验证最初将在小规模实验水槽中进行，随后将利用JFSA于2018年从Castle River收集的独特现场数据集。*JFSA和UDES之间的这一合作将为如何有效地将CFD代码应用于涉及河流系统泥沙输送的复杂水利工程项目提供见解。所获得的知识将使JFSA能够对以前无法实现的项目进行投标，并使JFSA在投标中更具竞争力，从而提高其未来的生存能力。因此，确保像JFSA这样的加拿大所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.**