title: Experimental study of hydraulic ram effects on a liquid storage tank: Analysis of overpressure and cavitation induced by a high-speed projectile.
abstract: This work is part of a project for evaluating catastrophic tank failures caused by impacts with a high-speed solid body. Previous studies on shock overpressure and drag events have provided analytical predictions, but they are not sufficient to explain ejection of liquid from the tank. This study focuses on the hydrodynamic behavior of the liquid after collision to explain subsequent ejection of liquid. The study is characterized by use of high-velocity projectiles and analysis of projectile dynamics in terms of energy loss to tank contents. New tests were performed at two projectile velocities (963 and 1255 m s(-1)) and over a range of viscosities (from 1 to 23.66 mPa s) of the target liquid. Based on data obtained from a high-speed video recorder, a phenomenological description is proposed for the evolution of intense pressure waves and cavitation in the target liquids.
authors.affiliation: Ecole des Mines d'Alès, 6, avenue de Clavières, 30319 Alès Cedex, France. nicolas.lecysyn@ema.fr
authors.forename: Nicolas
authors.initials: N
authors.lastname: Lecysyn
authors.forename: Aurélia
authors.initials: A
authors.lastname: Bony-Dandrieux
authors.forename: Laurent
authors.initials: L
authors.lastname: Aprin
authors.forename: Frédéric
authors.initials: F
authors.lastname: Heymes
authors.forename: Pierre
authors.initials: P
authors.lastname: Slangen
authors.forename: Gilles
authors.initials: G
authors.lastname: Dusserre
authors.forename: Laurent
authors.initials: L
authors.lastname: Munier
authors.forename: Christian
authors.initials: C
authors.lastname: Le Gallic
mesh_terms: D000465:Algorithms; D002617:Chemical Industry; D008422:Materials Testing; D011312:Pressure; D023481:Terrorism; D014741:Video Recording; D014783:Viscosity