Hydrothermal coupling in a rough fracture - Archive ouverte HAL
Communication Dans Un Congrès Année : 2006

Hydrothermal coupling in a rough fracture

Résumé

Heat exchange during laminar flow is studied at the fracture scale on the basis of the Stokes equation. We used a synthetic aperture model (a self-affine model) that has been shown to be a realistic geometrical description of the fracture morphology. We developed a numerical modelling using a finite difference scheme of the hydrodynamic flow and its coupling with an advection/conduction description of the fluid heat. As a first step, temperature within the surrounding rock is supposed to be constant. Influence of the fracture roughness on the heat flux through the wall, is estimated and a thermalization length is shown to emerge. Implications for the Soultz-sous-Forêts geothermal project are discussed.
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Dates et versions

hal-00110578 , version 1 (30-10-2006)

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Amélie Neuville, Renaud Toussaint, Jean Schmittbuhl. Hydrothermal coupling in a rough fracture. EDHRA conference 2006, 2006, France. 3 p. ⟨hal-00110578⟩
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