| 低重环境航天器贮箱内三维液体晃动数值模拟 | |
| 周宏 ; 李俊峰 ; 王天舒 ; ZHOU Hong ; LI Junfeng ; WANG Tianshu | |
| 2010-06-08 ; 2010-06-08 | |
| 关键词 | 航天器 晃动 表面张力 低重力 spacecraft sloshing surface tension low-gravity V419.2 |
| 其他题名 | Three-dimensional numerical simulation of liquid sloshing in spacecraft containers in low-gravity environments |
| 中文摘要 | 为了研究低重环境下航天器贮箱内液体晃动的特性,采用了任意Lagrange-Euler有限元方法描述贮箱内不可压粘性液体的运动。用Laplace-Young表面张力公式将表面张力效应引入自由液面边界条件,采用最小二乘数值逼近方法拟合自由液面平均曲率,给出了含表面张力的动力学边界条件的数值计算形式。数值模拟显示:低重环境下,由于表面张力效应,液面平衡位置会升高;该平衡液面与常重情况下的平衡液面有明显不同,可以在任何位置以不同的形状出现。; Liquid sloshing in spacecraft containers in low-gravity environments was investigated numerically using the arbitrary Lagrange-Euler finite element method to model incompressible viscous liquid motion. The kinetic boundary condition involving surface tension at the free surface was modeled with the Laplace-Young equation introducing surface tension effects to free surface boundary condition and with a least squares approximation regressing the average free surface curve. The numerical results illustrate that in a low-gravity environment the equilibrium surface position is higher compared with that in a normal gravity environment due to the surface tension effects with different equilibrium surface shapes appearing along the tank walls.; 国家自然科学基金资助项目(10172048) |
| 语种 | 中文 ; 中文 |
| 内容类型 | 期刊论文 |
| 源URL | [http://hdl.handle.net/123456789/50942]  |
| 专题 | 清华大学 |
| 推荐引用方式 GB/T 7714 | 周宏,李俊峰,王天舒,等. 低重环境航天器贮箱内三维液体晃动数值模拟[J],2010, 2010. |
| APA | 周宏,李俊峰,王天舒,ZHOU Hong,LI Junfeng,&WANG Tianshu.(2010).低重环境航天器贮箱内三维液体晃动数值模拟.. |
| MLA | 周宏,et al."低重环境航天器贮箱内三维液体晃动数值模拟".(2010). |
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