FW: Infinite Penetration of a Projectile into a Granular Medium

钻地导弹可以不停止的钻下去？！

 

Feed: PRL: Soft Matter, Biological, and Interdisciplinary Physics
Posted on: Wednesday, 25 May 2011 10:00 AM
Author: F. Pacheco-Vázquez, G. A. Caballero-Robledo, J. M. Solano-Altamirano, E. Altshuler, A. J. Batista-Leyva, and J. C. Ruiz-Suárez
Subject: Infinite Penetration of a Projectile into a Granular Medium

 

Author(s): F. Pacheco-Vázquez, G. A. Caballero-Robledo, J. M. Solano-Altamirano, E. Altshuler, A. J. Batista-Leyva, and J. C. Ruiz-Suárez An object falling in a fluid reaches a terminal velocity when the drag force and its weight are balanced. Contrastingly, an object impacting into a granular medium rapidly dissipates all its energy and comes to rest always at a shallow depth. Here we study, experimentally and theoretically, the pene... [Phys. Rev. Lett. 106, 218001] Published Wed May 25, 2011

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