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Viscous cavities

Abstract : We study experimentally the impact of solid spheres in a viscous liquid at moderate Reynolds numbers (Re similar to 5-100). We first determine the drag force by following the slowdown dynamics of projectiles. We then focus on the shape of the free surface: such impacts generate cavities, whose original shape is described and modeled. (C) 2013 American Institute of Physics.
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Anne Le Goff, David Quéré, Christophe Clanet. Viscous cavities. Physics of Fluids, American Institute of Physics, 2013, 25 (4), pp.043101. ⟨10.1063/1.4797499⟩. ⟨hal-00996496⟩



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