物理学报Issue(6)：331-337,7.DOI:10.7498/aps.62.064702
基于光滑粒子动力学方法的液滴冲击固壁面问题数值模拟
A numerical analysis of drop impact on solid surfaces by using smoothed particle hydrodynamics method∗
摘要
Abstract
In this paper, we present a numerical simulation of a single liquid drop impacting onto solid surface with smoothed particle hydrodynamics (SPH). SPH is a Lagrangian, meshfree particle method, and it is attractive in dealing with free surfaces, moving interfaces and deformable boundaries. The SPH model includes an improved approximation scheme with corrections to kernel gradient and density to improve computational accuracy. Riemann solver is adopted to solve equations of fluid motion. An new inter-particle interaction force is used for modeling the surface tension effects, and the modified SPH method is used to investigate liquid drop impacting onto solid surfaces. It is demonstrated that the inter-particle interaction force can effectively simulate the effect of surface tension. It can well describe the dynamic process of morphology evolution and the pressure field evolution with accurate and stable results. The spread factor increases with the increase of the initial Weber number. The numerical results are in good agreement with the theoretical and experimental results in the literature.关键词
液滴/固壁面/光滑粒子动力学/表面张力Key words
liquid drop/solid surfaces/smoothed particle hydrodynamics/surface tension引用本文复制引用
苏铁熊,马理强†,刘谋斌,常建忠..基于光滑粒子动力学方法的液滴冲击固壁面问题数值模拟[J].物理学报,2013,(6):331-337,7.基金项目
国家自然科学基金(批准号:11072267)、国家高技术研究发展计划(批准号:2008AA09Z316)和解放军理工大学预研基金(批准号:KYLY-ZLXY1202)资助的课题 （批准号:11072267）
