Selected Aspects of Developing a Simulation Model of a Spouted Bed Grain Dryer Based on the Eulerian Multiphase Model

Abstract

This article discusses the key aspects of developing a simulation model of a spouted bed grain dryer for an analysis of fluid dynamics. The following aspects have been analyzed: selection of computational space, type of geometry and computational grid, configuration of the mathematical model (based on the Eulerian multiphase model) through the selection of “closures,” turbulence modeling, the simulation model's sensitivity to changes in phase and flow parameters, as well as the configuration of numerical parameters. The presented study makes reference to an earlier experiment carried out by the author, and it sums up the author's previous work in the modeling of a spouted bed grain dryer. This article presents a synthetic overview of the problems that are frequently encountered in the process of developing simulation models of a spouted bed grain dryer and proposes several solutions.

Keywords:

• CFD
• Eulerian multiphase model
• Spouted bed dryer