The aerodynamic wall

Abstract : We study the trajectory of dense projectiles subjected to gravity and drag at large Reynolds number. We show that two types of trajectories can be observed: if the initial velocity is smaller than the terminal velocity of free fall, we observe the classical Galilean parabola: if it is larger, the projectile decelerates with an asymmetric trajectory first drawn by Tartaglia, which ends with a nearly vertical fall, as if a wall impeded the movement. This regime is often observed in sports, fireworks, watering, etc. and we study its main characteristics.
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Submitted on : Sunday, May 25, 2014 - 9:10:19 PM
Last modification on : Thursday, July 4, 2019 - 11:00:05 AM

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Caroline Cohen, Baptiste Darbois-Texier, Guillaume Dupeux, Eric Brunel, David Quere, et al.. The aerodynamic wall. Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, Royal Society, The, 2014, 470 (2161), ⟨10.1098/rspa.2013.0497⟩. ⟨hal-00995135⟩

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