The emergence of a new lift force

What common between a cartilaginous joint, the vehicle aquaplaning or the flow of red blood cells in blood vessels? These three situations involve a flow confined, said lubrication, and one or more soft surfaces. Lubrication, well-known hydrodynamicists corresponds to the flow created when two moving surfaces, very close to one another are separated by a liquid. Of Harvard University researchers, ENS and Gulliver combined laboratory experiments and theoretical approach to study the motion of a free object, weighing, lubricated near a soft surface. Their work was recently published in PNAS and show the existence of a new lift force due to deformation of the surface under the effect of pressure generated by the flow.

Congratulations to Thomas Salez for his works!


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