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

液压系统的数值模拟涉及到各种大小尺度的现象。在许多情况下，如沿岸流和河流，都可以观察到具有移动边界的流动。移动边界可能是水流（如潮流）的结果，也可能是侵蚀和沉积造成的。这种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着提高模型的精度。在这项研究中，新的，保守的特征为基础的方法（CCM）最近提出的申请人的自由表面流动将扩展到二维和三维的移动边界的模拟。

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.