Premium
Direct Numerical Simulation of Dense Gas‐Solid Two‐Phase Flows
Author(s) -
Zhulin Y.
Publication year - 2000
Publication title -
developments in chemical engineering and mineral processing
Language(s) - English
Resource type - Journals
eISSN - 1932-2143
pISSN - 0969-1855
DOI - 10.1002/apj.5500080303
Subject(s) - mechanics , eulerian path , discrete element method , stiffness , particle (ecology) , classical mechanics , cfd dem , friction coefficient , collision , fluidized bed , lagrangian , field (mathematics) , materials science , physics , mathematics , thermodynamics , computer science , composite material , theoretical physics , geology , oceanography , computer security , pure mathematics
Based on Newton's law and the classical physical laws, Eulerian and Lagrangian methods are respectively used to deal with gas‐field and discrete particles. The three‐dimensional viscid air‐field and three‐dimensional discrete particle field are solved in each time step Δt. Collision and friction between individual particles are taken into account when establishing the mathematical models, including individual particle diameter, density, stiffness and friction coefficient. Particles mixing in ball mills, particles dropping from hoppers, and particles fluidizing in fluidized beds are used as examples of the simulations. Selected simulated results are compared to experimental results.