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首页> 外文期刊>Ocean Engineering >Two-dimensional wave-current interaction with a locally enriched quadtree grid system
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Two-dimensional wave-current interaction with a locally enriched quadtree grid system

机译：与局部丰富的四叉树网格系统的二维波流相互作用

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Wave-induced currents may drive nearshore mixing and transport processes, including coastal pollutant dispersion, littoral drift, and long-term morphological changes through beach erosion and accretion. In this study, a numerical model is newly developed to simulate wave climate and localized currents in complicated coastal environments. The model developed is based on a quadtree grid system. The two-dimensional hydrodynamic governing equations are solved by using an explicit Adams-Bashforth finite difference scheme. Effects of wave breaking, shoaling, refraction, diffraction, wave-current interaction, set-up and set-down, turbulent mixing, bed friction, and shoreline movement are incorporated in the model. Results are presented for set-up at a beach in a flume due to normally incident waves, and longshore currents generated by oblique waves on a plane beach.
机译：波浪感应的电流可能会推动近岸的混合和运输过程，包括沿海污染物的扩散，沿岸漂流以及海滩侵蚀和积聚引起的长期形态变化。在这项研究中，新开发了一个数值模型来模拟复杂沿海环境中的海浪气候和局部电流。开发的模型基于四叉树网格系统。通过使用显式的Adams-Bashforth有限差分方案来求解二维流体动力控制方程。该模型包含了波浪破碎，浅滩，折射，衍射，波流相互作用，起落架，湍流混合，床层摩擦和海岸线运动的影响。呈现的结果是由于正入射波和平面海滩上的斜波产生的近岸电流，在水槽中的海滩上设置的结果。

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