格子玻尔兹曼方法模拟气泡泵提升管内双气泡运动

发布时间：2018-05-20 22:40

本文选题：格子玻尔兹曼方法 + 气泡泵　；参考：《大连海事大学学报》2017年02期

【摘要】：应用改进的格子玻尔兹曼自由能模型,对大密度比的溴化锂溶液中不同初始位置和不同大小的双气泡运动进行模拟,获得其密度场与速度矢量分布及其运动规律:大小相同、水平距离一定的双气泡在上升过程中出现先靠近再分离的两个阶段,与初始相对高度无关;大小不同的两气泡在上升过程中可能发生融合或分离,这主要取决于小气泡靠近大气泡时所在大气泡尾迹区的位置,若大小气泡融合,则融合后的气泡速度减小.
[Abstract]:The modified lattice Boltzmann free energy model is used to simulate the motion of double bubbles at different initial positions and different sizes in lithium bromide solution with large density ratio. The distribution of density field and velocity vector and its motion law are obtained: the size is the same. Two bubbles with a certain horizontal distance appeared in the rising process, which were close to each other first and then separated, which had nothing to do with the initial relative height, and the two bubbles of different sizes might merge or separate in the rising process. This mainly depends on the position of the small bubble in the wake of the big bubble when it is close to the big bubble. If the size of the bubble is fused, the velocity of the fused bubble will decrease.
【作者单位】：大连海事大学轮机工程学院;
【基金】：国家自然科学基金资助项目(50976015) 辽宁省科学技术计划项目(2010224002) 交通运输部海事局科技项目(2012_27) 中央高校基本科研业务费专项资金资助项目(3132016338)
【分类号】：O359.1

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