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Journal of Applied Mechanics and Technical Physics

2016 year, number 1

Lattice Boltzmann Simulation of a Fluid Flow Around a Triangular Unit of Three Isothermal Cylinders

J. Alinejad
Islamic Azad University, Sari, Iran
Keywords: метод сеточных уравнений Больцмана, изотермические цилиндры, вихревая дорожка, число Рейнольдса, lattice Boltzmann model, isothermal cylinders, vortex shedding, Reynolds number


The lattice Boltzmann method is employed to simulate heat transfer in the flow past three arrangements of elliptical and circular cylinders under an isothermal boundary condition. The lattice Boltzmann equations and the Bhatnagar-Gross-Krook model are used to simulate two-dimensional forced convection at 30 ≤ Re ≤ 100 and Pr = 0.71. Pressure distributions, isotherms, and streamlines are obtained. Vortex shedding maps are observed in detail for several cases. The present results are in good agreement with available experimental and numerical data.