Smoothed particle hydrodynamics modeling of viscous liquid drop without tensile instability
文献类型：期刊论文
| 作者 | Yang XF(杨秀峰) ; Liu MB(刘谋斌); Peng SL(彭世镠)
|
| 刊名 | COMPUTERS & FLUIDS
 |
| 出版日期 | 2014-03-20 |
| 卷号 | 92页码:199-208 |
| 通讯作者邮箱 | yangxf@imech.ac.cn |
| 关键词 | Liquid drop Smoothed particle hydrodynamics Tensile instability |
| ISSN号 | 0045-7930 |
| 产权排序 | [Yang, Xiufeng; Liu, Moubin; Peng, Shiliu] Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China |
| 通讯作者 | Yang, XF (reprint author), Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China. |
| 合作状况 | 国内 |
| 中文摘要 | Smoothed particle hydrodynamics (SPH), as a Lagrangian meshfree particle method, has been applied to modeling viscous liquid drop with surface tension and wetting dynamics. In the SPH model, the van der Waals (vdW) equation of state is usually used to describe the gas-to-liquid phase transition similar to that of a real fluid. However, the attractive forces between SPH particles originated from the cohesive pressure of the vdW equation of state can lead to tensile instability, which is associated with unphysical phenomena such as particle clustering or blowing away. This paper presents an improved SPH method for modeling viscous liquid drop. The inherent tensile instability in SPH is removed by using a hyperbolicshaped kernel function which possesses non-negative second derivatives. A single-step approximation for heat flux is used in modeling viscous liquid drop with smoother temperature field. The formations of viscous liquid drops, both in 2D and 3D, are tested and it clearly demonstrates that the tensile instability can be effectively removed. The improved SPH method is also used to model two other numerical examples including the oscillation and binary collision of liquid drops without tensile instability. (C) 2014 Elsevier Ltd. All rights reserved. |
| 学科主题 | Computer Science; Mechanics |
| 分类号 | 二类/Q2 |
| 收录类别 | SCI ; EI |
| 资助信息 | This work has been supported by the National Natural Science Foundation of China (11302237 and 11172306). |
| 原文出处 | http://dx.doi.org/10.1016/j.compfluid.2014.01.002 |
| 语种 | 英语 |
| WOS记录号 | WOS:000332264700016 |
| 公开日期 | 2014-05-09 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/48761]  |
| 专题 | 力学研究所_流固耦合系统力学重点实验室(2012-) |
| 推荐引用方式 GB/T 7714 | Yang XF,Liu MB,Peng SL. Smoothed particle hydrodynamics modeling of viscous liquid drop without tensile instability[J]. COMPUTERS & FLUIDS,2014,92:199-208. |
| APA | Yang XF,Liu MB,&Peng SL.(2014).Smoothed particle hydrodynamics modeling of viscous liquid drop without tensile instability.COMPUTERS & FLUIDS,92,199-208. |
| MLA | Yang XF,et al."Smoothed particle hydrodynamics modeling of viscous liquid drop without tensile instability".COMPUTERS & FLUIDS 92(2014):199-208. |
入库方式： OAI收割
来源：力学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。