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Published December 1, 1990 | Published
Journal Article Open

Hydrodynamic fingering instability of driven wetting films: hindrance by diffusion


Recent experimental and theoretical efforts have revealed the existence of a fingering instability at the moving front of thin liquid films forced to spread under gravitational, rotational or surface shear stresses, as for example by using the Marangoni effect. The authors describe how the presence of a precursor film in front of the spreading macroscopic film, whether it is by prewetting the substrate or by surface diffusion or multilayer absorption, can prevent the development of the instability.

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© IOP Publishing Limited 1990. Received 30 July 1990. Print publication: Issue S (1 December 1990) Special issue: EUROPEAN PHYSICAL SOCIETY FIRST LIQUID MATTER CONFERENCE LYON, FRANCE, 7-11 JULY 1990

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