| 利用格子Boltzmann方法模拟单个气泡在复杂流道内的运动特性 |
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| 引用本文： | 李维仲,孙红梅,董波. 利用格子Boltzmann方法模拟单个气泡在复杂流道内的运动特性[J]. 计算力学学报, 2013, 30(1): 106-110 |
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| 作者姓名： | 李维仲 孙红梅 董波 |
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| 作者单位： | 大连理工大学海洋能源利用与节能教育部重点实验室,大连,116024 |
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| 基金项目： | 国家自然科学基金(50976017);国家自然科学基金重点(50736001)资助项目. |
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| 摘 要： | 利用格子Boltzmann方法模拟了单个气泡在具有三个半圆形喉部的复杂流道内的上升过程.通过分析气泡运动过程中的形态、运动轨迹及运动速度的变化,研究复杂流道对气泡运动特性的影响.研究结果表明,在上升过程中,由于壁面的影响,气泡的形状发生严重的变形,运动轨迹也发生相应的偏转.通过实验结果的对比,验证了模拟结果的正确性.结果表明格子Boltzmann方法可以用于模拟具有复杂边界的两相流问题.
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| 关 键 词： | 气泡 复杂流道 运动特性 格子Boltzmann方法 两相流 |
| 收稿时间： | 2011-12-06 |
| 修稿时间： | 2012-01-20 |
Study on the characteristics of a bubble motion in a complex channel by lattice Boltzmann method |
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| LI Wei-zhong,SUN Hong-mei and DONG Bo. Study on the characteristics of a bubble motion in a complex channel by lattice Boltzmann method[J]. Chinese Journal of Computational Mechanics, 2013, 30(1): 106-110 |
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| Authors: | LI Wei-zhong SUN Hong-mei DONG Bo |
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| Affiliation: | Key Laboratory of Ocean Energy Utilization and Energy Conservation of Ministry of Education, Dalian University of Technology, Dalian 116024, China;Key Laboratory of Ocean Energy Utilization and Energy Conservation of Ministry of Education, Dalian University of Technology, Dalian 116024, China;Key Laboratory of Ocean Energy Utilization and Energy Conservation of Ministry of Education, Dalian University of Technology, Dalian 116024, China |
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| Abstract: | In this paper,the rising process of a single bubble in a complex channel consisting three half-circle throats was investigated by the lattice Boltzmann method.To analyze the influence of the complex channel on the motion characteristics of the bubble,the bubble shape,moving trajectory and bubble velocity during the rising process were studied,respectively.The result indicates that during the rising process,due to the influence of the surface,the bubble shape is deformed seriously,and the moving trajectory is deflected.By comparing with the experimental data,the simulations were validated.The results show that the lattice Boltzmann method is suitable for simulating the two-phase flows in the complex channel. |
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| Keywords: | bubble complex channel motion characteristics lattice Boltzmann method two-phase flows |
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