Fictitious domain method for an inverse problem in volcanoes - Université Clermont Auvergne
Communication Dans Un Congrès Année : 2020

Fictitious domain method for an inverse problem in volcanoes

Résumé

An inverse problem applied to volcanology is studied. It consists in the determination of the pressure applied to a crack in order to fit observed ground deformations. The deformation of the volcano is assumed to be governed by a linear elasticity PDE. The direct problem is solved via a fictitious domain method, using a finite element discretization of XFEM type. The gradient of the cost function is derived from a Lagrangian. A numerical test is presented.
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Dates et versions

hal-02325032 , version 1 (13-12-2020)

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Olivier Bodart, Valérie Cayol, Farshid Dabaghi, Jonas Koko. Fictitious domain method for an inverse problem in volcanoes. Domain Decomposition Methods in Science and Engineering XXV Series: Lecture Notes in Computational Science and Engineering,, Jul 2018, St John's, Canada. pp.498, ⟨10.1007/978-3-030-56750-7_47⟩. ⟨hal-02325032⟩
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