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Journal Articles Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences Year : 2014

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.

Dates and versions

hal-00995135 , version 1 (25-05-2014)

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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, 2014, 470 (2161), ⟨10.1098/rspa.2013.0497⟩. ⟨hal-00995135⟩
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