厦门大学学报（自然科学版）2017，Vol.56Issue(3)：364-369,6.DOI:10.6043/j.issn.0438-0479.201607021
正庚烷-丙酮混合物蒸发过程中的Marangoni对流
Marangoni Convection Induced in the Evaporation of the n-Heptane-acetone Mixture
钟亦兴 1卓亚运 1王振风 1沙勇1
作者信息
- 1. 厦门大学化学化工学院,福建厦门361005
- 折叠
摘要
Abstract
The Marangoni convection can be induced by decrease in the gas-liquid interface temperature due to the thermal effect accompanying in the evaporation of the n-heptane-acetone binary mixture.The development and evolution of the Marangoni convection during the evaporation process of the n-heptane-acetone binary mixture were observed directly with the optical shadowgraph method.A transient numerical computation was developed and conducted through combining the volume of fluid numerical method with the continuum surface tension method.The details of local velocity field,temperature and concentration distribution of the Marangoni convection were revealed by means of the simulation,and the reference time when the Marangoni convection took effect to enhance the mass transfer coefficient was acquired.It was found that the thermal effect associated with the mass transfer could play an important role in inducing the Marangoni convection and influencing mass transfer.关键词
Marangoni对流/热效应/传质/蒸发/计算流体力学Key words
Marangoni convection/thermal effect/mass transfer/evaporation/computational fluid mechanics分类
化学化工引用本文复制引用
钟亦兴,卓亚运,王振风,沙勇..正庚烷-丙酮混合物蒸发过程中的Marangoni对流[J].厦门大学学报（自然科学版）,2017,56(3):364-369,6.
