H. Sajjadi and M. Gorji and GH.R. Kefayati and D. D. Ganji and M. Shayan Nia
Numerical Analysis of Turbulent Natural Convection in a Square Cavity using Large Eddy Simulation in Lattice Boltzmann Method
240 - 244
2012
6
1
International Journal of Mechanical and Mechatronics Engineering
https://publications.waset.org/pdf/15165
https://publications.waset.org/vol/61
World Academy of Science, Engineering and Technology
In this paper Lattice Boltzmann simulation of
turbulent natural convection with largeeddy simulations (LES) in a
square cavity which is filled by water has been investigated. The
present results are validated by finds of other investigations which
have been done with different numerical methods. Calculations were
performed for high Rayleigh numbers of Ra108 and 109. The results
confirm that this method is in acceptable agreement with other
verifications of such a flow. In this investigation is tried to present
Largeeddy turbulence flow model by Lattice Boltzmann Method
(LBM) with a clear and simple statement. Effects of increase in
Rayleigh number are displayed on streamlines, isotherm counters and
average Nusselt number. Result shows that the average Nusselt
number enhances with growth of the Rayleigh numbers.
Open Science Index 61, 2012