Hydrodynamic description of a vibrofluidized granular bed driven at high frequency Nadeem A. Sheikh, Shehryar Manzoor, Muhammad Mahabat Khan and Muzaffar Ali Eur. Phys. J. Appl. Phys., 75 3 (2016) 31101 Published online: 12 August 2016 DOI: 10.1051/epjap/2016160154