A two-dimensional numerical wave flume based on SA-MPLS method

A two-dimensional numerical wave flume based on SA-MPLS method
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基于SA-MPLS方法的二维数值波水槽

DOI:
10.1007/s13131-012-0203-2
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发表时间:
2012-06
影响因子:
1.4
通讯作者:
黄筱云
黄筱云
中科院分区:
地球科学2区
文献类型:
--
作者:
黄筱云

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提出了一种基于四叉树网格系统的空间自适应二维数值波浪水槽,并提出了一种新的多粒子水平集(MPLS)方法来解决多个界面可能穿越公共交叉点的界面跟踪问题。采用自适应网格技术和MPLS方法,在模拟过程中根据流动特性自动更新网格分辨率,在自由表面和固体边界附近具有较高的分辨率,在不重要的区域具有较低的分辨率。该模型在节省计算机内存和CPU时间方面具有良好的性能,并通过小振幅波、二阶Stokes波和椭圆余弦波的计算实例进行了验证。计算结果还表明,该模型能较好地模拟驻波和越浪。
A spatially adaptive (SA) two-dimensional (2-D) numerical wave flume is presented based on the quadtree mesh system, in which a new multiple particle level set (MPLS) method is proposed to solve the problem of interface tracking, in which common intersection may be traversed by multiple interfaces. By using the adaptive mesh technique and the MPLS method, mesh resolution is updated automatically with time according to flow characteristics in the modeling process with higher resolution around the free surface and the solid boundary and lower resolution in less important area. The model has good performance in saving computer memory and CPU time and is validated by computational examples of small amplitude wave, second-order Stokes wave and cnoidal wave. Computational results also indicate that standing wave and wave overtopping are also reasonably simulated by the model.
DOI: 10.1006/jcph.1996.0130
发表时间: 1996-06-01
影响因子: 4.1
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