A novel non-reflecting boundary condition for fluid dynamics solved by smoothed particle hydrodynamics

A novel non-reflecting boundary condition for fluid dynamics solved by smoothed particle hydrodynamics
复制标题

通过平滑粒子流体动力学求解的新型流体动力学非反射边界条件

DOI:
10.1017/jfm.2018.852
复制
发表时间:
2018-12
影响因子:
3.7
通讯作者:
Cheng Han
Cheng Han
中科院分区:
工程技术2区
文献类型:
--
作者:
Wang Pingping;Zhang A-Man;Ming Furen;Sun Pengnan;Cheng Han

文献摘要

参考文献

被引文献

相似文献

无反射边界条件在计算流体力学中起着重要的作用。提出了一种基于时间轴插值特征线法的光滑粒子流体动力学(SPH)非线性边界元(NRBC)方法。它是由四层颗粒的压力和速度通过拉格朗日插值在时域中,这是来自于粒子之间的传播特征波获得。建议的NRBC可以允许向外传播的压力和速度信息通过边界而没有明显的反射。也就是说,随着NRBC的实现,感兴趣的有限计算域中的解接近于无限域中的解。几个数值试验表明,该NRBC是强大的,适用于各种流体力学从低到高的速度。
Non-reflecting boundary conditions (NRBCs) play an important role in computational fluid dynamics (CFD). A novel NRBC based on the method of characteristics using timeline interpolations is proposed for fluid dynamics solved by smoothed particle hydrodynamics (SPH). It is performed by four layers of particles whose pressures and velocities are obtained through the Lagrange interpolation in the time domain which is derived from the propagation of characteristic waves between particles. The proposed NRBC can allow outward travelling pressure and velocity messages to pass through the boundary without obvious reflection. That is, with the implementation of the NRBC, the solution in a finite computational domain of interest is close to that in an infinite domain. Several numerical tests show that this NRBC is robust and applicable for a broad variety of hydrodynamics ranging from low to high speed.
DOI: 10.1016/j.jcp.2006.08.013
发表时间: 2007-03
期刊: J. Comput. Phys.
影响因子: --
作者:
A. Tartakovsky;P. Meakin;Timothy Scheibe;R. West
通讯作者: A. Tartakovsky;P. Meakin;Timothy Scheibe;R. West
基于实验和SPH方法的船舶与进水耦合动力学研究
DOI: 10.1063/1.4986004
发表时间: 2017
期刊: Physics of Fluids
影响因子: 4.6
作者:
Cheng H;Zhang A M;Ming F R
通讯作者: Ming F R
DOI: 10.1002/cpa.3160230304
发表时间: 1970-05
影响因子: 3
作者:
H. Kreiss
通讯作者: H. Kreiss
DOI: 10.1016/j.oceaneng.2013.02.007
发表时间: 2013-05
期刊: Ocean Engineering
影响因子: 5
作者:
C. Ulrich;M. Leonardi;T. Rung
通讯作者: C. Ulrich;M. Leonardi;T. Rung
DOI: 10.1016/0021-9991(90)90152-q
发表时间: 1990-07
影响因子: 4.1
作者:
K. Thompson
通讯作者: K. Thompson