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

液压系统的数值模拟：移动边界和波浪-湍流相互作用

• 批准号: 386257-2010
• 负责人: Mohammadian, Abdolmajid
• 金额: $ 1.53万
• 依托单位: University of Ottawa
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2010
• 资助国家: 加拿大
• 起止时间: 2010-01-01 至 2011-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=463709
• 关键词: Numerical; modelling; hydraulic; systems; moving

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.

液压系统的数值建模涉及小尺度和大尺度的各种现象。在许多情况下都可以观察到具有移动边界的流动，例如沿海流和河流。移动边界可能是水流（例如潮汐流）的结果，也可能是侵蚀和沉积造成的。此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着提高模型的准确性。在这项研究中，申请人最近针对自由表面流提出的新的保守的基于特征的方法（CCM）将扩展到二维和三维移动边界的模拟。