We consider the floating body problem in the vertical plane on a large space scale. More precisely, we are interested in the numerical modeling of a body floating freely on the water such as icebergs or wave energy converters. The fluid-solid interaction is formulated using a congested shallow water model for the fluid and Newton’s second law of motion for the solid. We make a particular focus on the energy transfer between the solid and the water since it is of major interest for energy production. A numerical approximation based on the coupling of a finite volume scheme for the fluid and a Newmark scheme for the solid is presented. An entropy correction based on an adapted choice of discretization for the coupling terms is made in order to ensure a dissipation law at the discrete level. Simulations are presented to verify the method and to show the feasibility of extending it to more complex cases.
DOI: 10.5802/smai-jcm.67
Keywords: shallow water equations, wave-body interaction, congested model, coupling, entropy satisfying scheme
Edwige Godlewski 1; Martin Parisot 1; Jacques Sainte-Marie 1; Fabien Wahl 1
@article{SMAI-JCM_2020__6__227_0, author = {Edwige Godlewski and Martin Parisot and Jacques Sainte-Marie and Fabien Wahl}, title = {Congested shallow water model: on floating body}, journal = {The SMAI Journal of computational mathematics}, pages = {227--251}, publisher = {Soci\'et\'e de Math\'ematiques Appliqu\'ees et Industrielles}, volume = {6}, year = {2020}, doi = {10.5802/smai-jcm.67}, zbl = {1417.35121}, language = {en}, url = {https://smai-jcm.centre-mersenne.org/articles/10.5802/smai-jcm.67/} }
TY - JOUR AU - Edwige Godlewski AU - Martin Parisot AU - Jacques Sainte-Marie AU - Fabien Wahl TI - Congested shallow water model: on floating body JO - The SMAI Journal of computational mathematics PY - 2020 SP - 227 EP - 251 VL - 6 PB - Société de Mathématiques Appliquées et Industrielles UR - https://smai-jcm.centre-mersenne.org/articles/10.5802/smai-jcm.67/ DO - 10.5802/smai-jcm.67 LA - en ID - SMAI-JCM_2020__6__227_0 ER -
%0 Journal Article %A Edwige Godlewski %A Martin Parisot %A Jacques Sainte-Marie %A Fabien Wahl %T Congested shallow water model: on floating body %J The SMAI Journal of computational mathematics %D 2020 %P 227-251 %V 6 %I Société de Mathématiques Appliquées et Industrielles %U https://smai-jcm.centre-mersenne.org/articles/10.5802/smai-jcm.67/ %R 10.5802/smai-jcm.67 %G en %F SMAI-JCM_2020__6__227_0
Edwige Godlewski; Martin Parisot; Jacques Sainte-Marie; Fabien Wahl. Congested shallow water model: on floating body. The SMAI Journal of computational mathematics, Volume 6 (2020), pp. 227-251. doi : 10.5802/smai-jcm.67. https://smai-jcm.centre-mersenne.org/articles/10.5802/smai-jcm.67/
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