Instability of films flowing over topography with eddies

【Author】

Thilo Pollak;Nuri Aksel;

【Abstract】

<正>An experimental study of the stability of a viscous gravity-driven free surface film flowing down a strongly corrugated incline is presented.We observe eddies appearing in the troughs of the undulated substrate which serve as fluidic roller bearings for the liquid flowing above and an appearance of a resonance phenomenon.

【Keywords】

Instability of films flowing over topography with eddies;

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