Numerical simulation of natural convection in square cavities with power function temperature wall by lattice Boltzmann method

DOI

10.2991/icmmcce-15.2015.172How to use a DOI?

Keywords

Natural convection; Square cavity; Power function temperature boundary; Lattice Boltzmann model

Abstract

In this study, a thermal lattice Boltzmann model is employed to investigate the natural convection in square cavities with power function temperature boundary. The horizontal wall of cavities is adiabatic, and the temperature at the west and east wall is set to constant or a power function. Four cases classified by temperature condition are investigated in detail at different Rayleigh number, 103,104,105,106 and power index, 0, 0.5, 1, 2, 4 by Nusselt number and some hydrodynamic variables. Results show: though the average temperature different between west and east wall is same in the four cases on given power index, the thermal and hydrodynamic performance are of notable different, by which a useful suggestion about heat transfer rate in square cavities is put forward.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Xin Tian
AU  - Zhengwei Shui
AU  - Chiyuan Ren
PY  - 2015/12
DA  - 2015/12
TI  - Numerical simulation of natural convection in square cavities with power function temperature wall by lattice Boltzmann method
BT  - Proceedings of the 4th International Conference on Mechatronics, Materials, Chemistry and Computer Engineering 2015
PB  - Atlantis Press
SP  - 1357
EP  - 1362
SN  - 2352-538X
UR  - https://doi.org/10.2991/icmmcce-15.2015.172
DO  - 10.2991/icmmcce-15.2015.172
ID  - Tian2015/12
ER  -