2024-03-29T14:40:26Z
https://soar-ir.repo.nii.ac.jp/oai
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2022-12-14T04:30:16Z
1221:1222
Lattice Boltzmann simulation of nucleate pool boiling in saturated liquid
Tanaka, Yoshito
Yoshino, Masato
Hirata, Tetsuo
Lattice Boltzmann method (LBM)
two-phase fluid flows
heat transfer
nucleate pool boiling
wettability
First published in Communications in Commun. Comput. Phys. in No. 5, 9 (2011), published by Global Science Press
A thermal lattice Boltzmann method (LBM) for two-phase fluid flows in nucleate pool boiling process is proposed. In the present method, a new function for heat transfer is introduced to the isothermal LBM for two-phase immiscible fluids with large density differences. The calculated temperature is substituted into the pressure tensor, which is used for the calculation of an order parameter representing two phases so that bubbles can be formed by nucleate boiling. By using this method, two-dimensional simulations of nucleate pool boiling by a heat source on a solid wall are carried out with the boundary condition for a constant heat flux. The flow characteristics and temperature distribution in the nucleate pool boiling process are obtained. It is seen that a bubble nucleation is formed at first and then the bubble grows and leaves the wall, finally going up with deformation by the buoyant effect. In addition, the effects of the gravity and the surface wettability on the bubble diameter at departure are numerically investigated. The calculated results are in qualitative agreement with other theoretical predictions with available experimental data.
Article
Communications in Computational Physics. 9(5):1347-1361 (2011)
journal article
GLOBAL SCIENCE PRESS
2011-05
application/pdf
Communications in Computational Physics
5
9
1347
1361
1815-2406
AA12409334
https://soar-ir.repo.nii.ac.jp/record/12491/files/Lattice_Boltzmann_Simulation_Nucleate_Poolcicp.pdf
eng
10.4208/cicp.141109.161210s
https://doi.org/10.4208/cicp.141109.161210s
Copyright (c) 2011, Global Science Press