Numerical simulation of deep-water wave breaking using RANS: Comparison with experiments

IF 2.5 3区工程技术 Q2 MECHANICS

European Journal of Mechanics B-fluids Pub Date : 2024-08-14 DOI:10.1016/j.euromechflu.2024.08.003

Yuxuan Liu , Ton S. van den Bremer , Thomas A.A. Adcock

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引用次数: 0

Abstract

Wave breaking is a multifaceted physical phenomenon that is not fully understood and remains challenging to model. An effective method for investigating wave breaking involves utilising the two-phase Reynolds-averaged Navier–Stokes (RANS) equations to directly simulate breaking waves. In this study, we apply a RANS model with an adaptively refined mesh to simulate breaking waves in deep water using the stabilised RANS model proposed by Larsen and Fuhrman. This approach enables a more efficient simulation of the physics of breaking waves compared to Direct Numerical Simulations, as it places less stringent demands on grid resolution. Our findings demonstrate that the RANS model compares well with deep water wave breaking experiments in terms of surface elevation. We also give estimates of the breaking strength parameter of our RANS simulations and compared them with the literature.

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利用 RANS 对深水破浪进行数值模拟：与实验的比较

破浪是一种多层面的物理现象，目前尚未被完全理解，建模工作仍具有挑战性。研究破浪的有效方法是利用两相雷诺平均纳维-斯托克斯（RANS）方程直接模拟破浪。在本研究中，我们利用 Larsen 和 Fuhrman 提出的稳定 RANS 模型，应用带有自适应细化网格的 RANS 模型模拟深水中的破浪。与直接数值模拟相比，这种方法对网格分辨率的要求更低，因此能更有效地模拟破浪的物理过程。我们的研究结果表明，RANS 模型在表面高程方面与深水破浪实验有很好的可比性。我们还给出了 RANS 模拟的破浪强度参数估计值，并与文献进行了比较。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

European Journal of Mechanics B-fluids 物理-力学

CiteScore

5.90

自引率

3.80%

发文量

127

审稿时长

58 days

期刊介绍： The European Journal of Mechanics - B/Fluids publishes papers in all fields of fluid mechanics. Although investigations in well-established areas are within the scope of the journal, recent developments and innovative ideas are particularly welcome. Theoretical, computational and experimental papers are equally welcome. Mathematical methods, be they deterministic or stochastic, analytical or numerical, will be accepted provided they serve to clarify some identifiable problems in fluid mechanics, and provided the significance of results is explained. Similarly, experimental papers must add physical insight in to the understanding of fluid mechanics.