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Coupled modeling of thermics and hydrogeology with the Cast3M code: application to the Rainbow hydrothermal field (Mid-Atlantic Ridge, 36A degrees 14'N) ArchiMer
Perez, Florian; Muegler, Claude; Jean-baptiste, Philippe; Charlou, Jean-luc.
We present a new numerical tool developed in the Cast3M software framework to model hydrothermal circulation. Thermodynamic properties of one-phase pure water are calculated from the International Association for the Properties of Water and Steam formulation. This new numerical tool is validated on several test cases of convection in closed-top and open-top boxes. Simulations of hydrothermal circulation in a homogeneous-permeability porous medium also give results in good agreement with already published simulations. This new numerical tool is used to construct a geometric and physical conceptual model of the Rainbow vent site at 36A degrees 14(')N on the Mid-Atlantic Ridge. Several configurations are discussed, showing that high temperatures and high mass...
Tipo: Text Palavras-chave: Hydrothermal system; Mid-ocean ridge; Numerical modeling; Rainbow vent site; Permeability.
Ano: 2013 URL: http://archimer.ifremer.fr/doc/00133/24463/23108.pdf
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