Effects of Viscous Normal Stresses in Thin Draining Films

Mark W. Vaughn, John C. Slattery

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


The hydrodynamics of film drainage is normally treated using lubrication theory. Bird et al. suggested an alternative approach. Here, we compare these two approaches and find that lubrication theory neglects an edge effect. When the surfaces of the film are mobile, there is an additional normal force. Though typically negligible, in some cases this normal force may have an effect.

Original languageEnglish
Pages (from-to)3185-3186
Number of pages2
JournalIndustrial and Engineering Chemistry Research
Issue number10
StatePublished - Oct 1 1995


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