EPTT 2020

12th Spring School on Transition and Turbulence

NUMERICAL ANALYSIS OF EROSION IN CYCLONES CONSIDERING INTER-PARTICLE COLLISION

Submission Author: Diego Martins , MG
Co-Authors: Diego Martins, Francisco Souza, Ricardo Salvo
Presenter: Diego Martins

doi://10.26678/ABCM.EPTT2020.EPT20-0028

 

Abstract

Abstract. Cyclones separators are commonly used in industry to separate particles from gases. The collection efficiency in these devices can reach 99%. Despite their high efficiency, the use of cyclones for separating particles may be impractical due to high wear caused by collision of particles with the walls. In this paper, the particle-gas flow in a cyclone separator will be simulated using the Euler/Lagrange approach. The exchange of momentum between particles and fluid, and the collision between particles will be modelled using the four-way coupling method. The effect of collision between particles and particle/wall will be analyzed, and the wear will be estimated using an erosion correlation. Some interesting effects involving the exchange of momentum between the fluid and the particles will be also discussed.

Keywords

Cyclone erosion, Four-way coupling, LES, Inter-particle collision, Shielding effect

 

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