Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

LBM modelling unsteady flow past and through permeable diamond-shaped cylinders

LBM modelling unsteady flow past and through permeable diamond-shaped cylinders PurposeThe purpose of this paper is to investigate the unsteady flow past through a permeable diamond-shaped cylinder and to study the effects of the aspect ratios and Darcy numbers of the cylinder.Design/methodology/approachThe lattice Boltzmann method with D2Q9 lattice model was used to simulate the unsteady flow through permeable diamond-shaped cylinders. The present numerical method is validated against the available data.FindingsThe key findings are that increasing the permeability enhances the suppression of vortex shedding, and that the Strouhal number is directly proportion to the Darcy number, Reynolds number and the aspect ratio of the porous cylinder.Originality/valueThe present study considers unsteady laminar flow past through single permeable diamond-shaped cylinder. According to the authors’ knowledge, very few studies have been found in this field. The present findings are novel and original, which in turn can attract wide attention and citations. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png International Journal of Numerical Methods for Heat & Fluid Flow Emerald Publishing

LBM modelling unsteady flow past and through permeable diamond-shaped cylinders

Download PDF
26 pages

Loading next page...
 
/lp/emerald-publishing/lbm-modelling-unsteady-flow-past-and-through-permeable-diamond-shaped-X7CXvAJtiF

References

References for this paper are not available at this time. We will be adding them shortly, thank you for your patience.

Publisher
Emerald Publishing
Copyright
Copyright © Emerald Group Publishing Limited
ISSN
0961-5539
DOI
10.1108/HFF-12-2018-0720
Publisher site
See Article on Publisher Site

Abstract

PurposeThe purpose of this paper is to investigate the unsteady flow past through a permeable diamond-shaped cylinder and to study the effects of the aspect ratios and Darcy numbers of the cylinder.Design/methodology/approachThe lattice Boltzmann method with D2Q9 lattice model was used to simulate the unsteady flow through permeable diamond-shaped cylinders. The present numerical method is validated against the available data.FindingsThe key findings are that increasing the permeability enhances the suppression of vortex shedding, and that the Strouhal number is directly proportion to the Darcy number, Reynolds number and the aspect ratio of the porous cylinder.Originality/valueThe present study considers unsteady laminar flow past through single permeable diamond-shaped cylinder. According to the authors’ knowledge, very few studies have been found in this field. The present findings are novel and original, which in turn can attract wide attention and citations.

Journal

International Journal of Numerical Methods for Heat & Fluid Flow – Emerald Publishing

Published: Sep 2, 2019

References

  • On the onset of vortex shedding past a two-dimensional porous square cylinder
  • Condensation process and phase-change in the presence of obstacles inside a minichannel
  • Simulation of liquid reaction and droplet formation on a moving micro-object by lattice Boltzmann method
  • Simulating phase change during the droplet deformation and impact on a wet surface in a square microchannel: an application of oil drops collision
  • Effect of fluid-porous interface conditions on steady flow around and through a porous circular cylinder
  • Control of wake destructive behavior for different bluff bodies in channel flow by magnetohydrodynamics
  • Accurate computations of the laminar flow past a square cylinder based on two different methods: lattice-Boltzmann and finite-volume
  • Numerical analysis for the flow past a porous square cylinder based on the stress-jump interfacial-conditions
  • Heat transfer from a permeable square cylinder to a flowing fluid
  • Numerical simulation of flow around diamond-shaped obstacles at low to moderate Reynolds numbers
  • Lattice Boltzmann simulations of heat transfer in flow past a cylinder and in simple porous media
  • Lattice Boltzmann model for incompressible flows through porous media
  • A lattice Boltzmann model for convection heat transfer in porous media
  • An extrapolation method for boundary conditions in lattice Boltzmann method
  • A lattice Boltzmann method to simulate combined radiation–force convection heat transfer mode
  • An overview of boundary implementation in lattice Boltzmann method for computational heat and mass transfer
  • Force evaluations in lattice Boltzmann simulations with moving boundaries in two dimensions
  • Lattice Boltzmann simulation of flow and heat transfer in random porous media constructed by simulated annealing algorithm
  • A multiple-relaxation-time lattice Boltzmann model for convection heat transfer in porous media
  • Force evaluation in the lattice Boltzmann method involving curved geometry