title: Shock wave propagation in vibrofluidized granular materials.
abstract: Shock wave formation and propagation in vertically vibrated quasi-two-dimensional granular materials are studied by digital high speed photography. Steep density and temperature wave fronts form at the bottom of the granular layer when the layer collides with vibrating plate. Then the fronts propagate upwards through the layer. The temperature front is always in the transition region between the upward and downward granular flows. The effects of driving parameters and particle number on the shock are also explored.
authors.affiliation: State Key Laboratory of Modern Acoustics and Institute of Acoustics, Nanjing University, Nanjing 210093, People's Republic of China. huangkai1996@nju.org.cn
authors.forename: Kai
authors.initials: K
authors.lastname: Huang
authors.forename: Guoqing
authors.initials: G
authors.lastname: Miao
authors.forename: Peng
authors.initials: P
authors.lastname: Zhang
authors.forename: Yi
authors.initials: Y
authors.lastname: Yun
authors.forename: Rongjue
authors.initials: R
authors.lastname: Wei