Numerical study of agglomeration modeling in polydispersed gas-solid flows with respect to particle separation

David Schellander (Editor), Simon Schneiderbauer, Stefan Pirker

Research output: Chapter in Book/Report/Conference proceedingConference proceedingspeer-review

Abstract

In this paper the numerical particulate flow model EUgran+Poly (Schellander et.al, 2012b), which is an Eulerian-Lagrangian and Eulerian-Eulerian numerical hybrid model for dilute and dense rapid granular flows, is modified to account for agglomeration. We introduce a novel approach referred as, "Bus-Stop Model", where agglomeration is modelled using Lagrangian tracer trajectories. To achieve this goal, two possible agglomeration models are presented: 1) a simple volume balance model, 2) a new implementation of the population balance model by Smoluchowski (Smoluchowski, 1917). The validation of the new implementation of the agglomeration model is done by comparison with the discretized population balance model, for a simple case. Furthermore the applicability of the model is shown for an industrial cyclone. The agglomeration model shows the mean particle diameter increases in the cyclone. The simulation results indicate improved quality and accuracy.
Original languageEnglish
Title of host publicationNinth International Conference on computational fluid dynamics in the Minerals and Process Industries
Editors CSIRO
Number of pages6
Publication statusPublished - Dec 2012

Fields of science

  • 102009 Computer simulation
  • 103001 Aerodynamics
  • 103032 Fluid mechanics
  • 203 Mechanical Engineering
  • 203016 Measurement engineering
  • 203021 Fluid-flow machinery
  • 203024 Thermodynamics
  • 207111 Environmental engineering
  • 211104 Metallurgy
  • 203038 Ventilation technology
  • 204006 Mechanical process engineering
  • 204007 Thermal process engineering
  • 103043 Computational physics

JKU Focus areas

  • Computation in Informatics and Mathematics
  • Mechatronics and Information Processing
  • Engineering and Natural Sciences (in general)

Cite this