全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

一种新型三维水流数值模型

, PP. 167-173

Keywords: 自由表面流,快速粒子levelset法,虚拟压力法,速度等值外插

Full-Text   Cite this paper   Add to My Lib

Abstract:

以不可压缩流体的N-S方程为基本控制方程,用快速粒子levelset方法(FPLS)追踪自由表面,提出了一种新的三维水流数值模型。在自由表面处应用虚拟压力法来封闭压力泊松方程,同时用速度等值外插的方法构造自由表面外侧的虚拟速度分布。通过模拟水波振荡、水柱崩塌、水滴滴落和空箱注水过程证明了模型的有效性。

References

[1]  黄筱云,李绍武.空间自适应的FPLS方法[J]. 天津大学学报,2010,43(11):981-987.
[2]  FEDKIW R P, ASLAM T, MERRIMAN B, et al. A non-oscillatory Eulerian approach to interfaces in multi-material flows(the ghost fluid method) [J].Journal of Computational Physics, 1998, 152: 457-492.
[3]  HUANG X Y, LI S W, XIE S L. Hydrodynamic simulations based on a fast particle level set method // Proceedings of APAC 2007. Beijing:China Ocean Press, 2007: 383-386.
[4]  CHEN S, JOHNSON D B, RAAD P E. Velocity boundary conditions for the simulation of free surface fluid flow [J]. Journal of Computational Physics, 1994, 116: 262-276.
[5]  ADALSTENSSON D, SETHIAN J A. The fast construction of extension velocities in level set methods [J]. Journal of Computational Physics, 1999, 148: 2-22.
[6]  SUSSMAN M, SMEPEKA P, OSHER S. A level set approach for computing solutions to incompressible two-phase flow [J]. Journal of Computational Physics, 1994, 114: 146-159.
[7]  CHORIN A J. Numerical solution of the Navier-Stokes equations[J]. Mathematics of Computation, 1968, 22: 745-762.
[8]  GIBOU F, FEDKIW R P. A second-order-accurate symmetric discretization of the Poisson equation on irregular domains [J]. Journal of Computational Physics, 2002, 176: 205-227.
[9]  LIN P Z, LI C W. A σ coordinate three-dimensional numerical model for surface wave propagation [J]. International Journal for Numerical Methods in Fluids, 2002, 38: 1045-1068.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133