Numerical Simulation of Extreme Free Surface Waves
Numerical Simulation of Extreme Free Surface Waves
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发表时间：
2008
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通讯作者：
J. Westphalen;D. Greaves;Christopher Williams;J. Zang;P. Taylor
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作者：
J. Westphalen;D. Greaves;Christopher Williams;J. Zang;P. Taylor
在传统的海岸和近海工程设计中，通常采用物理实验和势流求解法来研究波浪对结构的作用。然而，大多数势流模型不能处理极端自由表面问题，包括波浪破碎或在结构上飞溅。此外，物理实验很容易变得非常复杂，并出现缩放问题。在这种情况下，需要一种包括水和空气的粘性效应模型，并将波和结构完全耦合的方法。本文利用两个商业软件包研究了断点附近的波浪产生问题。这些可用于产生极端设计波，以研究在这种具有挑战性的环境中运行的海上波浪能量转换器或其他设备的生存能力。给出了规则波和聚焦波的计算结果，并与物理实验和势流计算结果进行了比较。
In traditional coastal and offshore engineering design, physical experiments and potential flow solvers are commonly used to investigate wave loading on structures. However, most potential flow models cannot deal with extreme free surface problems including wave breaking or splashing over the structure. Further, physical experiments easily become very complex and scaling issues arise. In these cases, an approach that includes the viscous effects models both water and air and fully couples the wave and structure is needed. This paper deals with the generation of waves close to the breaking point using two commercial software packages. These may be used to generate an extreme design wave to investigate the survivability of offshore wave energy converters or other devices operating in such a challenging environment. Regular and focused wave results are presented and compared with physical experiments and potential flow calculations.