Realistic wave generation and active wave absorption for Navier-Stokes models Application to OpenFOAM®
Realistic wave generation and active wave absorption for Navier-Stokes models Application to OpenFOAM®
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DOI：
10.1016/j.coastaleng.2012.07.002
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发表时间：
2013-01-01
影响因子：
4.4
通讯作者：
Losada, Inigo J.
中科院分区：
文献类型：
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作者：
Higuera, Pablo;Lara, Javier L.;Losada, Inigo J.
本论文及其同伴（Higuera等人，2012年）引入OpenFOAM（R）作为考虑海岸工程应用的工具，因为它解决了3D领域并考虑了两相流。在这第一篇论文中，介绍了OpenFOAM（R）实用程序，并分析了自由表面流解算器。缺乏具体的边界条件的现实波的产生是克服了他们的实施结合主动波吸收。造波包括所有广泛使用的理论加上特定的活塞式造波机复制。此外，独立的主动波吸收实施解释了几个配方，所有这些都适用于3D的情况下。主动吸波被发现，以提高稳定性，通过减少系统的能量，并纠正长期模拟水位的增加。此外，它对于诸如海绵层的耗散区是有利的，因为它不增加计算域。结果根据理论（2D、准3D和3D）而变化，但所实现的方法的总体性能非常好。本文的模拟和结果是纯理论的。与实验室数据的比较在第二篇论文中给出（Higuera等人，2012年）。(c)2012爱思唯尔有限公司版权所有。
The present paper and its companion (Higuera et al., 2012) introduce OpenFOAM (R) as a tool to consider for coastal engineering applications as it solves 3D domains and considers two-phase flow. In this first paper, OpenFOAM (R) utilities are presented and the free surface flow solvers are analysed. The lack of specific boundary conditions for realistic wave generation is overcome with their implementation combined with active wave absorption. Wave generation includes all the widely used theories plus specific piston-type wavemaker replication. Also standalone active wave absorption implementation is explained for several formulations, all of which are applicable to 3D cases. Active wave absorption is found to enhance stability by decreasing the energy of the system and to correct the increasing water level on long simulations. Furthermore, it is advantageous with respect to dissipation zones such as sponge layers, as it does not increase the computational domain. The results vary depending on the theory (2D, Quasi-3D and 3D) but overall performance of the implemented methods is very good. The simulations and results of the present paper are purely theoretical. Comparisons with laboratory data are presented in the second paper (Higuera et al., 2012). (c) 2012 Elsevier B.V. All rights reserved.