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A trilinear immersed FEM for solving the EEG forward problem

Abstract : This abstract describes a trilinear immersed FEM (IFE) for solving 3-D elliptic interface problems avoiding the sometimes difficult task of generating geometry fitting meshes. The method uses hexahedral Cartesian meshes independent of the interfaces. Interfaces are represented with levelsets and the finite element space is locally modified to better approximate the discontinuities of the solution. The method is applied to solve the EEG (Electro-EncephaloGraphy) forward problem, thus avoiding the complex problem of meshing the head. Numerical results show that the proposed method achieves the same accuracy as the standard linear FEM with geometry fitting mesh.
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Submitted on : Monday, February 18, 2013 - 4:53:38 PM
Last modification on : Saturday, June 25, 2022 - 11:09:47 PM


  • HAL Id : hal-00789728, version 1



Sylvain Vallaghé, Théodore Papadopoulo. A trilinear immersed FEM for solving the EEG forward problem. ECCM IV - IV European Congress on Computational Mechanics: Solids, Structures and Coupled Problems in Engineering, May 2010, Paris, France. ⟨hal-00789728⟩



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