Settling and swimming of flexible fluid-lubricated foils

Phys Rev Lett. 2007 Nov 30;99(22):224503. doi: 10.1103/PhysRevLett.99.224503. Epub 2007 Nov 30.

Abstract

We study the dynamics of a flexible foil immersed in a fluid and moving close to a rigid wall. Lubrication theory allows us to derive equations of motion for the foil and thus examine the passive settling and the active swimming of a foil. This also allows us to partly answer the long-standing question in cartoon physics--can carpets fly? Our analysis suggests a region in parameter space where one may realize this dream and move the virtual towards reality.