| ALE有限元法解二维自由面流体大晃动问题 |
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| 引用本文： | 孙江龙,叶恒奎. ALE有限元法解二维自由面流体大晃动问题[J]. 华中科技大学学报(自然科学版), 2002, 30(11): 80-82 |
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| 作者姓名： | 孙江龙 叶恒奎 |
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| 作者单位： | 华中科技大学交通科学与工程学院;华中科技大学交通科学与工程学院 |
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| 基金项目： | 船舶工业国防科技预研基金资助项目 |
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| 摘 要： | 从Navier-Stokes方程和连续性方程出发,在ALE描述下,用四边形单元对所求区域加以划分;并借助于Galerkin加权余量法导出相应的有限元方程组,在有限元计算中速度和压力均采用四节点线性插值函数;通过二维自由面流体大晃动问题实例的计算,给出相应的计算结果,阐明了该方法的优越性和局限性。
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| 关 键 词： | ALE 有限元法 二维流体 自由面 大晃动 线性插值 |
| 文章编号： | 1671-4512(2002)11-0080-03 |
| 修稿时间： | 2002-04-22 |
Arbitrary Lagrangian-Eulerian finite element method for large sloshing in two-dimensional fluid flow with a free surface |
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| Sun Jianglong Ye Hengkui Doctoral Candidate, College of Traffic Sci. & Eng.,Huazhong Univ. of Sci. & Tech.,Wuhan ,China.. Arbitrary Lagrangian-Eulerian finite element method for large sloshing in two-dimensional fluid flow with a free surface[J]. JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE, 2002, 30(11): 80-82 |
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| Authors: | Sun Jianglong Ye Hengkui Doctoral Candidate College of Traffic Sci. & Eng. Huazhong Univ. of Sci. & Tech. Wuhan China. |
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| Affiliation: | Sun Jianglong Ye Hengkui Doctoral Candidate, College of Traffic Sci. & Eng.,Huazhong Univ. of Sci. & Tech.,Wuhan 430074,China. |
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| Abstract: | A finite element analysis was presented based on the Arbitrary Lagrangian Eulerian (ALE) description for large sloshing of two dimensional fluid flow with a free surface. 2 D Navier Stokes (NS) equation and the continuity equation were employed for fluid flow. The fluid domain was divided by quadrilateral elements. The finite element equations were derived by Galerkin method. Four nodal points linear interpolation functions was used for both velocity and pressure. A numerical example was provided to testify the advantages and disadvantages of Arbitrary Lagrangian Eulerian finite element method. |
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| Keywords: | ALE finite element method two dimentional fluid free surface large sloshing linear interpolation |
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