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
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发表时间:
2018-12
影响因子:
3.7
通讯作者:
Cheng Han
中科院分区:
文献类型:
--
作者:
Wang Pingping;Zhang A-Man;Ming Furen;Sun Pengnan;Cheng Han
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.
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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
影响因子:
4.6
作者:
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通讯作者:
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影响因子:
3
作者:
H. Kreiss
通讯作者:
H. Kreiss
影响因子:
5
作者:
C. Ulrich;M. Leonardi;T. Rung
通讯作者:
C. Ulrich;M. Leonardi;T. Rung
影响因子:
4.1
作者:
K. Thompson
通讯作者:
K. Thompson