Application of Lattice Boltzmann Method for Simulation of Turbulent Diffusion from a CO_2 Lake in Deep Ocean

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  • Jiang, Fei
    Interdisciplinary Graduate School of Engineering Sciences, Kyushu University
  • Hu, Changhong
    International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University | Research Institute for Applied Mechanics, Kyushu University

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Abstract

This paper presents a numerical method based on the Lattice Boltzmann (LB) scheme, which aims to accurately model and simulate the carbon dioxide (CO_2) dissolution, diffusion, and convection process in the condition of complex ocean current, turbulence and varying topography of the ocean floor. This LBM based scheme is carefully validated by using several benchmark test cases. A two-dimensional simulation study of CO_2 dissipation from a CO_2 lake is carried out to demonstrate the capability of the proposed method. The influence of the ocean current turbulence on the CO_2 dissolution rate is also ciscussed.

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