Stabilising falling liquid film flows using feedback control

• Published in: Physics of fluids (1994) Vol. 28; no. 1
• Main Authors: Thompson, Alice B., Gomes, Susana N., Pavliotis, Grigorios A., Papageorgiou, Demetrios T.
• Format: Journal Article
• Language: English
• Published: Melville American Institute of Physics 01.01.2016
• Subjects: Active control; ACTUATORS; APPROXIMATIONS; CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; CONTROL SYSTEMS; Falling liquid films; Feedback control; FILM FLOW; Fluid dynamics; FLUID INJECTION; Free surfaces; HEAT TRANSFER; HEIGHT; Industrial applications; INTERFACES; LAYERS; LIQUIDS; Physics; STEADY-STATE CONDITIONS; Suction; Traveling waves; TRAVELLING WAVES; WALLS

Falling liquid films become unstable due to inertial effects when the fluid layer is sufficiently thick or the slope sufficiently steep. This free surface flow of a single fluid layer has industrial applications including coating and heat transfer, which benefit from smooth and wavy interfaces, resp...