| 基于SPH方法的表面张力修正算法及其应用 |
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| 引用本文： | 强洪夫,陈福振,高巍然.基于SPH方法的表面张力修正算法及其应用[J].计算力学学报,2011,28(Z1):37-42. |
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| 作者姓名： | 强洪夫 陈福振 高巍然 |
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| 作者单位： | 第二炮兵工程学院,201室,西安,710025 |
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| 基金项目： | 国家教育部NCET资助项目，国家973资助项目，第二炮兵工程学院创新性探索研究资助项目 |
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| 摘 要： | 针对传统SPEI方法中基于CSF模型的表面张力算法,在计算边界、尖角等粒子缺失部位的曲率时存在偏差较大,且粒子秩序较差,对大变形问题表面张力计算精度较低的问题,在Morris提出的表面张力SPH方法基础上,通过引入CSPM方法对边界法向的计算和曲率的计算进行修正,得到了表面张力修正方程组.应用本文方法模拟了水溶液中初始...
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| 关 键 词： | 光滑粒子流体动力学 表面张力算法 CSF方法 曲率 液滴碰撞破碎 |
Modified algorithm for surface tension in smoothed particle hydrodynamics and its application |
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| QIANG Hong-fu,CHEN Fu-zhen,GAO Wei-ran.Modified algorithm for surface tension in smoothed particle hydrodynamics and its application[J].Chinese Journal of Computational Mechanics,2011,28(Z1):37-42. |
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| Authors: | QIANG Hong-fu CHEN Fu-zhen GAO Wei-ran |
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| Institution: | QIANG Hong-fu,CHEN Fu-zhen~*,GAO Wei-ran (201 Staff Room,Xi'an Hi-Tech Institute,Xi'an 710025,China) |
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| Abstract: | The continuum surface force(CSF)model for surface tension,which is employed in the traditional smoothed particle hydrodynamics(SPH) method,is very low accurate when handling the problem with large deformation and surface tension.The reason is that the deficiency of particles near the boundary and sharp-angled areas,and it caused large error of curvature calculation in the traditional SPH method.In this paper modified equations for surface tension were derived by modifying normal and curvature with correctiv... |
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| Keywords: | SPH surface tension method CSF curvature breaking up of colliding drops |
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