Mathematical model using macroscopic and microscopic scales of an electrical arc discharge through a porous medium in HBC fuses - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Année : 2003

Mathematical model using macroscopic and microscopic scales of an electrical arc discharge through a porous medium in HBC fuses

Résumé

We introduce a model to describe the mechanical interaction and the energy transfer mechanisms from arc column toward to porous medium occuring in the HBC fuse. The model is built on a macroscopic and microscopic approach in order to evaluate more accurately the thermal evolution of the solid phase and the vaporization and condensation processes of the silica sand. We consider a thermal model at the scale of a sand grain to determine the temperature evolution of the sand grains. The gas flow is based on the compressible homogenized Euler equations with two species coupled with a porous media model. The governing equations are discretized following a finite volume scheme coupled with a fractional step technique.
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Dates et versions

hal-00085014 , version 1 (11-07-2006)

Identifiants

  • HAL Id : hal-00085014 , version 1

Citer

David Rochette, Stéphane Clain, William Bussiere. Mathematical model using macroscopic and microscopic scales of an electrical arc discharge through a porous medium in HBC fuses. 2003, pp.188-193. ⟨hal-00085014⟩
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