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化工学报  2015 

水力学聚焦微通道中气液两相流动的数值模拟

DOI: 10.11949/j.issn.0438-1157.20150893, PP. 3398-3404

Keywords: 计算流体力学,水力学聚焦,两相流,微通道

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Abstract:

采用计算流体力学方法,考察了水力学聚焦微通道中气、液两相的流动状态。气、液两相在微通道中呈膜状流动,成膜过程可划分为3个阶段,液相表面压力、黏性力和表面张力在该过程中不断变化。考察了两相入口压强对两相流量和膜厚的影响,模拟结果显示:保持两相压强比值不变,同时改变两相压强,影响不显著;改变两相压强比值,影响显著。

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