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首页> 外文期刊>Journal of ocean engineering and marine energy >Beyond VoF: alternative OpenFOAM solvers for numerical wave tanks
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Beyond VoF: alternative OpenFOAM solvers for numerical wave tanks

机译：除了受到:替代OpenFOAM解决者数值波浪坦克

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摘要

The vast majority of numerical wave tank applications are solved using finite volume-based, volume of fluid methods. One popular numerical modelling framework is OpenFOAM and its two phase solvers, interFoam and interIsoFoam, enabling the simulation of a broad range of marine hydrodynamic phenomena. However, in many applications, certain aspects of the entire set of possible hydrodynamic phenomena are not of interest and the reduced complexity could allow the use of simpler, more computationally efficient solvers. One barrier for the application of such alternative solvers is the lack of suitable wavemaking and absorption capabilities, which this paper aims to address. A wavemaking and absorption methodology is presented, which can be applied to different solvers using the same fundamental concept. The implementation is presented for interFoam and interIsoFoam, as well as two other solvers whose use as numerical wave tanks has not previously been reported in the literature, shallowWaterFoam and potentialFreeSurfaceFoam. Parameter studies are performed to guide the user in the use of the methods. Example applications for two industrially relevant test cases are demonstrated; a multi-frequency wave packet focused at one position over flat bottom and regular waves propagating over a submerged shoal. All solvers yielded useful results, but some complex wave transformations in the shoal case were only resolved by the VoF methods. Alternative methods beyond the already well established VoF methods seem worth considering because potential for significant reductions in computational effort exist.
机译：绝大多数的数值波浪水槽使用有限的应用程序解决基于卷的,体积的液体的方法。流行的数值建模框架OpenFOAM和它的两个阶段解决,interFoam和interIsoFoam,使广泛的模拟海洋水动力现象的范围。在许多应用程序中,某些方面的整个组可能的水动力现象不感兴趣的和降低复杂性允许使用简单,更多的计算有效的解决者。应用程序的替代解决者是缺乏合适的造波和吸收本文旨在解决能力。造波和吸收方法提出适用于不同解决使用相同的基本概念。实现了interFoam和interIsoFoam以及另外两个解决的作为数值波浪坦克已经不是以前在文献中报道,shallowWaterFoam和potentialFreeSurfaceFoam。执行指导用户使用的方法。工业相关的测试用例证明;集中在一个位置在平底在水下浅滩常规波传播。解决者取得了有用的结果,但一些复杂的波转换的浅滩只有通过受到的方法来解决。替代方法超出了已经建立受到似乎值得考虑的方法因为潜在的显著减少计算工作存在。

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