Advances in vibrated gas-fluidized beds

Structured bubbling in vibrated gas-fluidized beds of binary granular particles: experiments and simulations

“…3 Vertical vibration can bring grains into a fluid-like state when the peak vibrational acceleration is greater than gravitational acceleration, expressed non-dimensionally by the vibration strength: , where f and A are the vibration frequency and amplitude, respectively, and g is the gravitational acceleration. 5,6 Combined gas flow and vibration in a vibrated gas-fluidized bed is often used to fluidize cohesive particles, and recent studies have demonstrated that combined gas flow and vibration can induce scalable, structured flow patterns in grains, 7 such as structured bubbling, 8 convective cells 9 and surface waves. 10…”