期刊
JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY
卷 28, 期 6, 页码 2179-2188出版社
KOREAN SOC MECHANICAL ENGINEERS
DOI: 10.1007/s12206-014-0120-8
关键词
Incompressible SPH; Free surface flow; Dam-break flow; Inclined plane; Water entry; Circular cylinder
资金
- IT R&D program of MSIP/KEIT [10044910]
- Korea Evaluation Institute of Industrial Technology (KEIT) [R0101-14-0171] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
A 2D incompressible smoothed particle hydrodynamics (SPH) method is implemented to simulate the impact flows associated with complex free surface. In the incompressible SPH framework, pressure Poisson equation (PPE) based on the projection method is solved using a semi-implicit scheme to evaluate the correct pressure distribution. In this procedure, the PPE comprises the divergence-free velocity condition and density-invariance condition with a relaxation parameter. To test the accuracy and efficiency of the proposed incompressible SPH method, it was applied to several sample problems with largely distorted free surface, including 2D dam-break over horizontal and inclined planes with different inclination angles, as well as the water entry of a circular cylinder into a tank. We mainly focused on the time history of impact pressure on various positions of the solid boundary and temporal evolution of free surface profiles. The results showed reasonably good agreement with experimental data. However, further improvement is needed for extremely high impact flow.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据