Show simple item record

dc.contributor.author沙勇
dc.contributor.author李樟云
dc.contributor.author江桂仙
dc.contributor.author吐松
dc.contributor.author肖宗源
dc.contributor.author叶李艺
dc.date.accessioned2016-05-17T02:51:48Z
dc.date.available2016-05-17T02:51:48Z
dc.date.issued2010
dc.identifier.citation化工学报,2010,(5):57-60
dc.identifier.issn0438-1157
dc.identifier.otherHGSZ201005008
dc.identifier.urihttps://dspace.xmu.edu.cn/handle/2288/106406
dc.description.abstractIn gas-liquid mass transfer processes,Marangoni convection may occur due to the surface tension gradient produced by mass transfer near the interface.With a falling soap film tunnel and the Schlieren optical method,the Marangoni convection patterns along the film surface were observed directly in the desorption process of acetone from the falling soap film.The Schlieren images showed the regular roll convection in the thin falling soap film during the acetone desorption.The hydraulic characteristics were determined experimentally by measuring the variation of acetone concentration in the film and the surface tension of the soap liquid.The results show that the acetone concentration gradient vertical to the falling direction is very small because the thickness of the soap film is in the order of 10-6 m.The variation of acetone concentration along the falling film is large,so there is a significant surface tension gradient,resulting in the Marangoni roll convection.The experimental results and a qualitative analysis may be helpful to understand the mechanism of Marangoni convection near the interface in the mass transfer.
dc.description.sponsorship国家自然科学基金项目(20606027)----
dc.language.isozh_CN
dc.subjectMarangoni对流
dc.subject传质
dc.subject纹影
dc.subject皂膜
dc.subjectMarangoni convection
dc.subjectmass transfer
dc.subjectSchlieren
dc.subjectsoap film
dc.title竖直流动皂膜中解吸导致的Marangoni对流观察
dc.title.alternativeObservation on Marangoni convection induced by desorption in falling soap film
dc.typeArticle


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record