The influence of particle properties on pressure signals in dense gas-fluidised beds: a computer simulation study
Year: 1998
Type: conference-paper
Abstract: A hard-sphere discrete particle model of a gas-fluidised bed was used in order to study the influence of particle properties on pressure signals in dense gas-fluidised beds. In the model the gas-phase hydrodynamics is described by the spatially averaged Navier-Stokes equations for two-phase flow. For each solid particle the Newtonian equations of motion are solved taking into account the inter-particle and particle-wall collisions. Pressure fluctuations inside the bed are strongly affected by the coefficients of restitution and friction: the more energy is dissipated in collisions the stronger the fluctuations are. The root mean square of the pressure fluctuations showed an almost linear dependency on the amount of energy dissipated in collisions during the simulation.
Language: English
Subfield: Computational Mechanics
Field: Engineering
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2096328607