光滑粒子水动力学在水利与海洋工程中的应用研究进展

将光滑粒子水动力学(smoothed particle hydrodynamics,SPH)在水利及海洋工程中的应用分为纯水流模拟、流固耦合模拟、泥沙模拟和水气两相流模拟4大类问题,系统地介绍了SPH在解决这些问题时的技术手段与研究现状,指出了SPH独特的计算方法及其在处理无反射造波、进出流边界、流固界面运动、底床冲刷等问题中面临的困难,阐述了不同类型的SPH模型的优缺点,总结了SPH在过去十几年的发展特点,并提出未来SPH在水动力学领域的发展方向应该集中在开发高精度与高效率的新算法模型、成熟的紊流模型和高效的并行计算模型方面。

Recent advances of application of smoothed particle hydrodynamics in hydraulic and ocean engineering

In this paper, the application of smoothed particle hydrodynamics (SPH) in hydraulic and ocean engineering is divided into four categories: wave and current simulation, fluid-solid coupling simulation, sediment transport simulation, and water-air two-phase flow simulation. The paper describes the research status and corresponding technical treatments of SPH application, especially with regard to the difficulties of non-reflection wave generation, inflow and outflow boundaries, fluid-solid interface movement, and bed scour; elaborates on the advantages and disadvantages of different SPH models; summarizes the development characteristics of SPH over the past decade; and proposes that the future work on SPH application in the hydraulics field focus on developing a high-accuracy and efficient algorithm model, mature turbulence model, and parallel computing model.