摘要
本文利用LevelSet方法，数值模拟了微重力情况下气泡／液滴的Marangoni迁移现象，分析了Marangoni数对迁移速度的影响。数值模拟结果表明，随着Marangoni数的增大，非线性热对流效应的影响会逐渐增大，导致沿相界面温度分布趋于均匀，从而降低迁移运动的驱动力，使气泡／液滴的迁移速度随Marangoni数的增加而逐渐减小。
Using the Level Set method, we simulate the Marangoni migration of bubble and drop in microgravity condition and we analyze the influence of Marangoni number on the migration velocity in this paper. The simulation results indicate that with the increase of Marangoni number, the effect of nonlinear heat convection will also increase gradually and this can make the temperature of the phase interface much more uniform and diminish the driving force of the migration, so the terminal migration velocity of bubble and drop will decrease monotonously with the increase of the Marangoni number.
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
2010年第6期979-982,共4页
Journal of Engineering Thermophysics
基金
国家自然科学基金重点项目(No.10972225)
