Eventos Anais de eventos
COBEM 2019
25th International Congress of Mechanical Engineering
COUPLING FINITE ELEMENTS APPLIED TO HYDRAULIC ANALYSIS IN SATURATED POROUS MEDIA
Submission Author:
Murilo Camargo , SP
Co-Authors:
Murilo Camargo, Pedro Cleto, Eduardo Alexandre Rodrigues, Heber Agnelo Antonel Fabbri, Osvaldo Luís Manzoli
Presenter: Murilo Camargo
doi://10.26678/ABCM.COBEM2019.COB2019-1863
Abstract
This paper presents a new methodology to couple non-matching Finite Element (FE) meshes used to model fluid flow in saturated porous media. The proposed technique is based on the definition of Coupling Finite Elements (CFEs), which are strategically employed to ensure the continuity of pressure between independent (non-matching) FE meshes. This technique is particularly powerful to handle cases where specific regions of the material need to be discretized with highly refined FE meshes. In addition, the non-matching meshes are coupled without increasing the total number of degrees of freedom of the problem. Two preliminary numerical examples (2D problem) with non-matching meshes are analyzed to validate the proposed method. The results obtained for the matching and non-matching meshes are compared.
Keywords
Darcy's law, non-matching meshes, coupling finite elements, Porous media
