基于SPH方法的孤立波数值模拟
Numerical Simulation of Solitary Waves Based on SPH Method
文常青 1吴静萍1
作者信息
- 1. 武汉理工大学船海与能源动力工程学院 武汉 430063
- 折叠
摘要
文中应用DualSPHysics开源代码平台,基于Goring理论采用推板造波方法构建二维数值造孤立波水槽,探究粒子间距Dp对数值模拟孤立波的影响.采用6种粒子间距Dp分别对2种波高的孤立波进行了数值模拟,显示了 2个监测点处数值模拟与解析解的波形对比,计算和分析了不同Dp下、4个监测点处的波高与理论波高的误差.结果表明:粒子间距Dp=0.01 m时数值模拟精度较高同时计算耗时较少,并将此种粒子间距Dp的数值模拟结果与物理试验测量结果进行了对比,二者吻合程度好.
Abstract
Using the open source code platform of DualSPHysics,based on Goring theory,a two-di-mensional numerical solitary wave tank was constructed by using the push-plate wave-making method,and the influence of particle spacing Dp on numerical simulation solitary waves was explored.The soli-tary waves with two wave heights were numerically simulated by using six kinds of particle spacing Dp,and the waveforms of numerical simulation and analytical solution at two monitoring points were compared.The errors between wave heights and theoretical wave heights at four monitoring points under different Dp were calculated and analyzed.The results show that the numerical simulation accu-racy is higher and the calculation time is less when the particle spacing Dp=0.01 m,and the numerical simulation results of this particle spacing Dp are compared with the physical test results,and they are in good agreement.
关键词
SPH/孤立波/粒子间距/数值模拟/物理试验Key words
SPH/solitary wave/particle spacing/numerical simulation/physical experiment引用本文复制引用
出版年
2024
NETL
NSTL
万方数据