Development of a multi-scale ocean model by using particle Laplacian method for anisotropic mass transfer

Se-Min Jeong, Toru Sato, Baixin Chen, Shigeru Tabeta

Research output: Contribution to journalArticle

Abstract

The direct injection of CO2 into the deep ocean is one of the feasible ways for the mitigation of the global warming, although there is a concern about its environmental impact near the injection point. To minimize its biological impact, it is necessary to make CO2 disperse as quickly as possible, and it is said that injection with a pipe towed by a moving ship is effective for this purpose. Because the injection ship moves over a spatial scale of O(102km), a mesoscale model is necessary to analyse the dispersion of CO2. At the same time, since it is important to investigate high CO2 concentration near the injection point, a small-scale model is also required. Therefore, in this study, a numerical model was developed to analyse CO2 dispersion in the deep ocean by using a fixed mesoscale and a moving small-scale grid systems, the latter of which is nested and moves in the former along the trajectory of the moving ship. To overcome the artificial diffusion of mass concentration at the interface of the two different grid systems and to keep its spatial accuracy almost the same as that in the small-scale, a particle Laplacian method was adopted and newly modified for anisotropic diffusion in the ocean. © 2010 John Wiley & Sons, Ltd..

Original languageEnglish
Pages (from-to)49-63
Number of pages15
JournalInternational Journal for Numerical Methods in Fluids
Volume66
Issue number1
DOIs
Publication statusPublished - 10 May 2011

Fingerprint

mass transfer
ocean
global warming
mitigation
environmental impact
pipe
trajectory
ship
particle
method

Keywords

  • Anisotropic diffusion
  • CO 2 ocean sequestration
  • Low-wavenumber forcing
  • Moving and nesting grid
  • Multi-scale ocean model
  • Particle anisotropic Laplacian method

Cite this

@article{007dd10b850540cdaf3f08fbb6f32e1c,
title = "Development of a multi-scale ocean model by using particle Laplacian method for anisotropic mass transfer",
abstract = "The direct injection of CO2 into the deep ocean is one of the feasible ways for the mitigation of the global warming, although there is a concern about its environmental impact near the injection point. To minimize its biological impact, it is necessary to make CO2 disperse as quickly as possible, and it is said that injection with a pipe towed by a moving ship is effective for this purpose. Because the injection ship moves over a spatial scale of O(102km), a mesoscale model is necessary to analyse the dispersion of CO2. At the same time, since it is important to investigate high CO2 concentration near the injection point, a small-scale model is also required. Therefore, in this study, a numerical model was developed to analyse CO2 dispersion in the deep ocean by using a fixed mesoscale and a moving small-scale grid systems, the latter of which is nested and moves in the former along the trajectory of the moving ship. To overcome the artificial diffusion of mass concentration at the interface of the two different grid systems and to keep its spatial accuracy almost the same as that in the small-scale, a particle Laplacian method was adopted and newly modified for anisotropic diffusion in the ocean. {\circledC} 2010 John Wiley & Sons, Ltd..",
keywords = "Anisotropic diffusion, CO 2 ocean sequestration, Low-wavenumber forcing, Moving and nesting grid, Multi-scale ocean model, Particle anisotropic Laplacian method",
author = "Se-Min Jeong and Toru Sato and Baixin Chen and Shigeru Tabeta",
year = "2011",
month = "5",
day = "10",
doi = "10.1002/fld.2246",
language = "English",
volume = "66",
pages = "49--63",
journal = "International Journal for Numerical Methods in Fluids",
issn = "0271-2091",
publisher = "John Wiley and Sons Ltd",
number = "1",

}

Development of a multi-scale ocean model by using particle Laplacian method for anisotropic mass transfer. / Jeong, Se-Min; Sato, Toru; Chen, Baixin; Tabeta, Shigeru.

In: International Journal for Numerical Methods in Fluids, Vol. 66, No. 1, 10.05.2011, p. 49-63.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Development of a multi-scale ocean model by using particle Laplacian method for anisotropic mass transfer

AU - Jeong, Se-Min

AU - Sato, Toru

AU - Chen, Baixin

AU - Tabeta, Shigeru

PY - 2011/5/10

Y1 - 2011/5/10

N2 - The direct injection of CO2 into the deep ocean is one of the feasible ways for the mitigation of the global warming, although there is a concern about its environmental impact near the injection point. To minimize its biological impact, it is necessary to make CO2 disperse as quickly as possible, and it is said that injection with a pipe towed by a moving ship is effective for this purpose. Because the injection ship moves over a spatial scale of O(102km), a mesoscale model is necessary to analyse the dispersion of CO2. At the same time, since it is important to investigate high CO2 concentration near the injection point, a small-scale model is also required. Therefore, in this study, a numerical model was developed to analyse CO2 dispersion in the deep ocean by using a fixed mesoscale and a moving small-scale grid systems, the latter of which is nested and moves in the former along the trajectory of the moving ship. To overcome the artificial diffusion of mass concentration at the interface of the two different grid systems and to keep its spatial accuracy almost the same as that in the small-scale, a particle Laplacian method was adopted and newly modified for anisotropic diffusion in the ocean. © 2010 John Wiley & Sons, Ltd..

AB - The direct injection of CO2 into the deep ocean is one of the feasible ways for the mitigation of the global warming, although there is a concern about its environmental impact near the injection point. To minimize its biological impact, it is necessary to make CO2 disperse as quickly as possible, and it is said that injection with a pipe towed by a moving ship is effective for this purpose. Because the injection ship moves over a spatial scale of O(102km), a mesoscale model is necessary to analyse the dispersion of CO2. At the same time, since it is important to investigate high CO2 concentration near the injection point, a small-scale model is also required. Therefore, in this study, a numerical model was developed to analyse CO2 dispersion in the deep ocean by using a fixed mesoscale and a moving small-scale grid systems, the latter of which is nested and moves in the former along the trajectory of the moving ship. To overcome the artificial diffusion of mass concentration at the interface of the two different grid systems and to keep its spatial accuracy almost the same as that in the small-scale, a particle Laplacian method was adopted and newly modified for anisotropic diffusion in the ocean. © 2010 John Wiley & Sons, Ltd..

KW - Anisotropic diffusion

KW - CO 2 ocean sequestration

KW - Low-wavenumber forcing

KW - Moving and nesting grid

KW - Multi-scale ocean model

KW - Particle anisotropic Laplacian method

U2 - 10.1002/fld.2246

DO - 10.1002/fld.2246

M3 - Article

VL - 66

SP - 49

EP - 63

JO - International Journal for Numerical Methods in Fluids

JF - International Journal for Numerical Methods in Fluids

SN - 0271-2091

IS - 1

ER -