TY - JOUR
T1 - Numerical simulation of a rising CO2 droplet in the initial accelerating stage by a multiphase lattice Boltzmann method
AU - Jiang, Fei
AU - Hu, Changhong
N1 - Funding Information:
This research is supported by Grants-in Aid for Challenging Exploratory Research, MEXT (No. 24656536 ), and partially by World Premier International Research Center Initiative, MEXT, Japan. The authors acknowledge the helpful discussion on GPU implementation with Prof. T. Aoki from Tokyo Institute of Technology. The authors also thank Prof. T. Yanagi of Kyushu University for the beneficial advice on the CCS researches.
PY - 2014/3
Y1 - 2014/3
N2 - A multi-phase flow model which applies lattice Boltzmann method (LBM) is developed for numerical simulation of the initial accelerating stage of a rising CO2 droplet in the deep ocean. In the present LBM model, a multiple-relaxation time (MRT) collision operator is adopted to increase the numerical stability, and a color model is used to treat the two-phase fluid. A domain shift scheme is proposed to make the long distance calculation available. The computation is accelerated by using the GPU computing and correspondent parallel implementation techniques are developed. The proposed numerical model is first validated against several benchmark problems: Laplace law test, binary Poiseuille flow problem and rise of a toluene droplet. Then numerical simulation of a liquid CO2 droplet rising from quiescence to its steady state is carried out and the results are compared to a laboratory experiment. Excellent agreement is obtained on both terminal velocity and variation of droplet shape.
AB - A multi-phase flow model which applies lattice Boltzmann method (LBM) is developed for numerical simulation of the initial accelerating stage of a rising CO2 droplet in the deep ocean. In the present LBM model, a multiple-relaxation time (MRT) collision operator is adopted to increase the numerical stability, and a color model is used to treat the two-phase fluid. A domain shift scheme is proposed to make the long distance calculation available. The computation is accelerated by using the GPU computing and correspondent parallel implementation techniques are developed. The proposed numerical model is first validated against several benchmark problems: Laplace law test, binary Poiseuille flow problem and rise of a toluene droplet. Then numerical simulation of a liquid CO2 droplet rising from quiescence to its steady state is carried out and the results are compared to a laboratory experiment. Excellent agreement is obtained on both terminal velocity and variation of droplet shape.
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U2 - 10.1016/j.apor.2013.06.005
DO - 10.1016/j.apor.2013.06.005
M3 - Article
AN - SCOPUS:84891779964
SN - 0141-1187
VL - 45
SP - 1
EP - 9
JO - Applied Ocean Research
JF - Applied Ocean Research
ER -