Simulation Ofmixed Convective Heat Transfer Using Lattice Boltzmann Method
In this paper, mixed (forced–natural) convective heat transfer around a heated square cylinder located inside a lid driven cavity has been studied numerically using the lattice Boltzmann method in the range of 100≤Re ≤1000 with the corresponding Richardson number 0.01≤Ri≤10. The double-population...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Universiti Malaysia Pahang
2010
|
| Subjects: | |
| Online Access: | http://umpir.ump.edu.my/id/eprint/1621/ http://umpir.ump.edu.my/id/eprint/1621/1/5_M_M_Rahman_28072010_3_clean.pdf |
| Summary: | In this paper, mixed (forced–natural) convective heat transfer around a heated square
cylinder located inside a lid driven cavity has been studied numerically using the lattice
Boltzmann method in the range of 100≤Re ≤1000 with the corresponding Richardson
number 0.01≤Ri≤10. The double-population lattice Boltzmann formulation is used as
the governing equation. Two dimensional nine-velocity models areused for the
computation of the velocity field while a four-velocity model is used for the
computation of thetemperature field. We found that the combination of nine- and fourvelocity
models can be applied tothe calculation without losing its accuracy. Theresults
are presented in the form of streamline and isotherm plots as well as the variation of
local Nusselt number at the top surface of theheated square. The computational results
demonstrate that the flow pattern, formation of vortex and also the Nusselt number are
influence by theReynolds number and Richardson number. |
|---|