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local poisson sph for viscous incompressible fluids
文献类型：期刊论文
| 作者 | He Xiaowei ; Liu Ning ; Li Sheng ; Wang Hongan ; Wang Guoping |
| 刊名 | Computer Graphics Forum
 |
| 出版日期 | 2012 |
| 卷号 | 31期号:6页码:1948-1958 |
| 关键词 | Incompressible flow Integral equations Poisson equation |
| ISSN号 | 0167-7055 |
| 中文摘要 | Enforcing fluid incompressibility is one of the time-consuming aspects in SPH. In this paper, we present a local Poisson SPH (LPSPH) method to solve incompressibility for particle based fluid simulation. Considering the pressure Poisson equation, we first convert it into an integral form, and then apply a discretization to convert the continuous integral equation to a discretized summation over all the particles in the local pressure integration domain determined by the local geometry. To control the approximation error, we further integrate our local pressure solver into the predictive-corrective framework to avoid the computational cost of solving a pressure Poisson equation globally. Our method can effectively eliminate the large density deviations mainly caused by the solid boundary treatment and free surface topological change, and show advantage of a higher convergence rate over the predictive-corrective incompressible SPH (PCISPH). © 2012 The Eurographics Association and Blackwell Publishing Ltd. |
| 英文摘要 | Enforcing fluid incompressibility is one of the time-consuming aspects in SPH. In this paper, we present a local Poisson SPH (LPSPH) method to solve incompressibility for particle based fluid simulation. Considering the pressure Poisson equation, we first convert it into an integral form, and then apply a discretization to convert the continuous integral equation to a discretized summation over all the particles in the local pressure integration domain determined by the local geometry. To control the approximation error, we further integrate our local pressure solver into the predictive-corrective framework to avoid the computational cost of solving a pressure Poisson equation globally. Our method can effectively eliminate the large density deviations mainly caused by the solid boundary treatment and free surface topological change, and show advantage of a higher convergence rate over the predictive-corrective incompressible SPH (PCISPH). © 2012 The Eurographics Association and Blackwell Publishing Ltd. |
| 收录类别 | EI |
| 语种 | 英语 |
| WOS记录号 | WOS:000309070200012 |
| 公开日期 | 2013-09-17 |
| 源URL | [http://ir.iscas.ac.cn/handle/311060/15472]  |
| 专题 | 软件研究所_软件所图书馆_期刊论文 |
| 推荐引用方式 GB/T 7714 | He Xiaowei,Liu Ning,Li Sheng,et al. local poisson sph for viscous incompressible fluids[J]. Computer Graphics Forum,2012,31(6):1948-1958. |
| APA | He Xiaowei,Liu Ning,Li Sheng,Wang Hongan,&Wang Guoping.(2012).local poisson sph for viscous incompressible fluids.Computer Graphics Forum,31(6),1948-1958. |
| MLA | He Xiaowei,et al."local poisson sph for viscous incompressible fluids".Computer Graphics Forum 31.6(2012):1948-1958. |
入库方式： OAI收割
来源：软件研究所
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