Lattice Boltzmann Method for Laminar Forced Convection in a Channel with a Triangular Prism


Benim C., Aslan E., Taymaz I.

HEAT TRANSFER RESEARCH, vol.42, no.4, pp.359-377, 2011 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 42 Issue: 4
  • Publication Date: 2011
  • Doi Number: 10.1615/heattransres.2011002483
  • Title of Journal : HEAT TRANSFER RESEARCH
  • Page Numbers: pp.359-377

Abstract

The Lattice Boltzmann Method (LBM) is applied to computationally investigate the laminar flow and heat transfer of an incompressible fluid with constant material properties in a two-dimensional channel with a built-in triangular prism. Not only the momentum transport, but also the energy transport is modeled by LBM. A uniform lattice structure with a single time relaxation rule is used. The flow is investigated for different Reynolds numbers, while keeping the Prandtl number at a constant value of 0.7. The results show how the presence of a triangular prism affects the flow and heat transfer patterns for the steady-state and unsteady/periodic flow regimes. As an assessment of the accuracy of the developed LBM code, the results are compared with those obtained by a commercial CFD code. It is observed that the present LBM code delivers results that are of similar accuracy to the well-established CFD code.

The Lattice Boltzmann Method (LBM) is applied to computationally investigate the laminar flow and heat transfer of an incompressible fluid with constant material properties in a two-dimensional channel with a built-in triangular prism. Not only the momentum transport, but also the energy transport is modeled by LBM. A uniform lattice structure with a single time relaxation rule is used. The flow is investigated for different Reynolds numbers, while keeping the Prandtl number at a constant value of 0.7. The results show how the presence of a triangular prism affects the flow and heat transfer patterns for the steady-state and unsteady/periodic flow regimes. As an assessment of the accuracy of the developed LBM code, the results are compared with those obtained by a commercial CFD code. It is observed that the present LBM code delivers results that are of similar accuracy to the well-established CFD code.