高等学校化学研究 ›› 2004, Vol. 20 ›› Issue (4): 483-488.
A CFD Model for Fluid Dynamics in a Gas-fluidised Bed
ZHANG Kai1,2, Stefano Brandani2
- 1. State Key Laboratory of Heavy Oil Processing, Faculty of Chemical Science & Engineering, University of Petroleum, Beijing 102249, P. R. China;
2. Centre for CO2 Technology, Department of Chemical Engineering, University College London, London WC1E 7JE, UK
A CFD Model for Fluid Dynamics in a Gas-fluidised Bed
ZHANG Kai1,2, Stefano Brandani2
- 1. State Key Laboratory of Heavy Oil Processing, Faculty of Chemical Science & Engineering, University of Petroleum, Beijing 102249, P. R. China;
2. Centre for CO2 Technology, Department of Chemical Engineering, University College London, London WC1E 7JE, UK
摘要： A modified particle bed model derived from the two-fluid momentum balance equations was employed to predict the gas-fluidised bed behaviour.Additional terms are included in both the fluid and the particle momentum balance equations to take into account the effect of the dispersed solid phase.This model has been extended to two-dimensional formulations and has been implemented in the commercial code CFX 4.3.The model correctly simulates the homogeneous fluidisation of Geldart Group A and the bubbling fluidisation of Geldart Group B in gas-solid fluidised beds.