A hybrid FD-DEM solver for rigid particles in viscous fluid
文献类型：期刊论文
| 作者 | Wu, Shifeng1,2,3; Yuan, Li2,3 |
| 刊名 | COMPUTERS & FLUIDS
 |
| 出版日期 | 2015-09-02 |
| 卷号 | 118页码:159-166 |
| 关键词 | Collision Particulate flow Repulsive force Fictitious domain method Discrete element method Discrete delta-function |
| ISSN号 | 0045-7930 |
| DOI | 10.1016/j.compfluid.2015.05.028 |
| 英文摘要 | In this article, the dynamics of colliding particles immersed in a viscous fluid is numerically investigated. An improved fictitious domain (FD) method for a solid-fluid system is developed and a collision strategy for multiple particles is presented. In earlier methods, a repulsive force is applied to the particles when their separation distance is less than a critical value and depending on the magnitude of this artificial repulsive force, collision of two or more particles may bounce unrealistically. In the present method, when the collision of two or more particles happens, the collision force acting on each colliding particle is determined by using the Discrete Element Method (DEM). Furthermore, the improved FD method employs a discrete delta-function in the form of bi-function to transfer quantities between the Eulerian and Lagrangian nodes similar to the immersed boundary method. This feature avoids the need to use Lagrange multipliers for imposition of the rigid body motion. Numerical results for motions of one or several particles in a viscous fluid are presented. (C) 2015 Elsevier Ltd. All rights reserved. |
| 资助项目 | Natural Science Foundation of China[10972230] ; Natural Science Foundation of China[11021101] ; Natural Science Foundation of China[11261160486] ; state key program for developing basic sciences[2010CB731505] ; Department of Education of Guangdong Province[2014KQNCX175] |
| WOS研究方向 | Computer Science ; Mechanics |
| 语种 | 英语 |
| WOS记录号 | WOS:000359964100012 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://ir.amss.ac.cn/handle/2S8OKBNM/20620]  |
| 专题 | 中国科学院数学与系统科学研究院 |
| 通讯作者 | Wu, Shifeng |
| 作者单位 | 1.Guangdong Polytech Normal Univ, Dept Comp Sci, Guangzhou 510665, Guangdong, Peoples R China 2.Chinese Acad Sci, LSEC, Beijing 100080, Peoples R China 3.Chinese Acad Sci, Inst Computat Math, Acad Math & Syst Sci, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wu, Shifeng,Yuan, Li. A hybrid FD-DEM solver for rigid particles in viscous fluid[J]. COMPUTERS & FLUIDS,2015,118:159-166. |
| APA | Wu, Shifeng,&Yuan, Li.(2015).A hybrid FD-DEM solver for rigid particles in viscous fluid.COMPUTERS & FLUIDS,118,159-166. |
| MLA | Wu, Shifeng,et al."A hybrid FD-DEM solver for rigid particles in viscous fluid".COMPUTERS & FLUIDS 118(2015):159-166. |
入库方式： OAI收割
来源：数学与系统科学研究院
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。