Dynamically structured bubbling in vibrated gas-fluidized granular materials.

ABSTRACT: The dynamics of granular materials are critical to many natural and industrial processes; granular motion is often strikingly similar to flow in conventional liquids. Food, pharmaceutical, and clean energy processes utilize bubbling fluidized beds, systems in which gas is flowed upward through granular particles, suspending the particles in a liquid-like state through which gas voids or bubbles rise. Here, we demonstrate that vibrating these systems at a resonant frequency can transform the normally chaotic motion of these bubbles into a dynamically structured configuration, creating reproducible, controlled motion of particles and gas. The resonant frequency is independent of particle properties and system size, and a simple harmonic oscillator model captures this frequency. Discrete part

SUBMITTER: Guo Q 

PROVIDER: S-EPMC8536389 | biostudies-literature | 2021 Aug

REPOSITORIES: biostudies-literature