Sakarya University Journal Of Science, cilt.24, sa.1, ss.10-19, 2020 (Hakemli Üniversite Dergisi)
The aim of the present study is to investigate the effects of the rectangular prism on forced
convection in a channel with the Lattice Boltzmann Method (LBM). In this context, numerical
analysis of steady and unsteady incompressible flow and heat transfer has been done in a twodimensional straight parallel channel. Momentum and energy transport are modelled with
LBM. This study is used as a single relaxation time rule with a uniform square lattice structure.
Different Reynolds numbers (50 and 1000) and constant Prandtl number value (0.7) have been
investigated. In this study Nusselt number has been calculated for channel flow with rectangular
prism and it was compared with an empty channel. Streamlines and isotherms were presented
for the above-mentioned cases. LBM results were validated by commercial CFD code with the
same conditions. It is found from results that Nusselt number with a rectangular prism in a
channel was increased and the flow goes to transient form at Re=1000. Also, LBM code results
are similar accuracy with commercial CFD code.