Numerical modelling of hydraulic systems: moving boundaries and wave-turbulence interaction

液压系统的数值建模涉及到大大小小的各种现象。在许多情况下，都可以观察到边界移动的水流，例如海岸水流和河流。边界移动可能是水流(例如潮汐流)的结果，也可能是侵蚀和沉积造成的。这类流动的数值模拟是一个具有挑战性的问题，新的计算方案可以显著提高模型的精度。在这项研究中，自由面流动的申请人最近提出的新的保守的基于特征的方法(CCM)将被扩展到二维和三维运动边界的模拟。

Numerical modeling of hydraulic systems involves various phenomena at small and large scales. Flows with moving boundaries are observed in many situations, such as coastal currents and rivers. Moving boundaries may be the result of water flow (e.g. tidal currents) or be caused by erosion and sedimentation. The numerical simulation of such flows is a challenging problem, and new computational schemes could significantly improve the accuracy of models. In this research, the new, conservative characteristic-based method (CCM) recently proposed by the applicant for free surface flows will be extended to the simulation of moving boundaries in two and three dimensions.