On the treatment of solid boundary in smoothed particle hydrodynamics | |
Liu MB(刘谋斌); Shao JR(邵家儒); Chang JZ; liumoubin@imech.ac.cn | |
发表期刊 | Science China-Technological Sciences |
2012 | |
卷号 | 55期号:1页码:244-254 |
ISSN | 1674-7321 |
摘要 | As a popular meshfree particle method, the smoothed particle hydrodynamics (SPH) has suffered from not being able to directly implement the solid boundary conditions. This influences the SPH approximation accuracy and hinders its further development and application to engineering and scientific problems. In this paper, a coupled dynamic solid boundary treatment (SBT) algorithm has been proposed, after investigating the features of existing SPH SBT algorithms. The novelty of the coupled dynamic SBT algorithm includes a new repulsive force between approaching fluid and solid particles, and a new numerical approximation scheme for estimating field functions of virtual solid particles. The new SBT algorithm has been examined with three numerical examples including a typical dam-break flow, a dam-break flow with a sharp-edged obstacle, and a water entry problem. It is demonstrated that SPH with this coupled dynamic boundary algorithm can lead to accurate results with smooth pressure field, and that the new SBT algorithm is also suitable for complex and even moving solid boundaries. |
关键词 | Sph Flows Smoothed Particle Hydrodynamics (Sph) Particle Method Solid Boundary Treatment (Sbt) Coupled Dynamic Sbt |
学科领域 | 水动力学 |
URL | 查看原文 |
收录类别 | SCI ; EI |
语种 | 英语 |
WOS记录号 | WOS:000298629700028 |
课题组名称 | LMFS冲击与耦合效应(LHO) |
论文分区 | 二类/Q2 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://dspace.imech.ac.cn/handle/311007/45742 |
专题 | 流固耦合系统力学重点实验室 |
通讯作者 | liumoubin@imech.ac.cn |
推荐引用方式 GB/T 7714 | Liu MB,Shao JR,Chang JZ,et al. On the treatment of solid boundary in smoothed particle hydrodynamics[J]. Science China-Technological Sciences,2012,55,1,:244-254. |
APA | Liu MB,Shao JR,Chang JZ,&liumoubin@imech.ac.cn.(2012).On the treatment of solid boundary in smoothed particle hydrodynamics.Science China-Technological Sciences,55(1),244-254. |
MLA | Liu MB,et al."On the treatment of solid boundary in smoothed particle hydrodynamics".Science China-Technological Sciences 55.1(2012):244-254. |
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