| 波浪在平缓岸滩上爬坡的有限差分格子Boltzmann模拟 |
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| 引用本文： | 张金凤,张庆河.波浪在平缓岸滩上爬坡的有限差分格子Boltzmann模拟[J].水动力学研究与进展(A辑),2009,24(3). |
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| 作者姓名： | 张金凤 张庆河 |
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| 作者单位： | 天津大学建筑工程学院暨港口与海洋工程教育部重点实验室,天津,300072 |
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| 基金项目： | 教育部高等学校博士学科点专项科研基金 |
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| 摘 要： | 应用有限差分格子Boltzmann方法模拟平缓岸滩上波浪爬坡过程,计算结果和半解析解以及其它数值模型模拟结果吻合.通过和标准格子Boltzmann模型计算结果比较,发现在格子Boltzmann方法的基础上采用高精度有限差分格式离散方程取较大的空间和时间步长就可以得到稳定的计算结果,节省计算时间,可以用于模拟大范围波浪爬坡现象.
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| 关 键 词： | 有限差分格子Boltzmann方法 浅水长波 波浪爬坡 |
Finite difference-based Lattice-Boltzmann method for wave climbing onto a plane beach |
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| ZHANG Jin-feng,ZHANG Qing-he.Finite difference-based Lattice-Boltzmann method for wave climbing onto a plane beach[J].Journal of Hydrodynamics,2009,24(3). |
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| Authors: | ZHANG Jin-feng ZHANG Qing-he |
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| Affiliation: | School of Civil Engineering;Tianjin University & Key Laboratory of Harbor and Ocean Engineering;Ministry of Education;P.R.China;Tianjin 300072;China |
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| Abstract: | Wave climbing onto a plane beach is simulated by finite difference-based Lattice Boltzmann (FDLB) method. The numerical results are in good agreement with the semi-analytical and numerical results reported in the literatures. By the comparison with the standard Lattice Boltzmann solution, it is found that the high-order finite difference scheme for the spatial and time derivatives applied to Lattice Boltzmann equation can obtain the stable results even using larger space and time step, and therefore it can ... |
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| Keywords: | finite difference-based lattice Boltzmann method shallow water wave wave climb |
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