CFD study of a single-spout pseudo-2D bed: the impact of the solids wall boundary conditions

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Abstract

In this paper a CFD study of a single-spout pseudo-2D bed is presented. The effect of two different approaches for the wall boundary conditions for the particulate phase are investigated and compared. It is shown, that the boundary conditions of Johnson and Jackson (1987) are not applicable to a fluidized bed characterized by different collisional regimes (i.e. collisions with and without sliding). In contrast, utilizing boundary conditions accounting for both types of collisions improves the accordance of the numerical model to the measurements significantly in the region of the spout.
Original languageEnglish
Title of host publicationProceedings of the 9th WSEAS International Conference on Fluid Mechanics (FLUIDS '12)
Editors Jha, M. K. and Lazard, M. and Zaharim, A. and Sopian, K.
Place of PublicationHarvard, Cambridge, MA
PublisherWSEAS
Pages150-155
Number of pages6
Publication statusPublished - Jan 2012

Fields of science

  • 103032 Fluid mechanics
  • 203 Mechanical Engineering
  • 203016 Measurement engineering
  • 203024 Thermodynamics
  • 211104 Metallurgy
  • 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)

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