Direct numerical simulation of a bubble motion in a spherical tank under external forces and microgravity conditions

Autor: Barbara Busset, Sébastien Tanguy, Annaig Pedrono, Jean Mignot, Henri Bavestrello, Alexis Dalmon, Mathieu Lepilliez

Publikováno v: Journal of Fluid Mechanics
Journal of Fluid Mechanics, Cambridge University Press (CUP), 2018, 849, pp.467-497. ⟨10.1017/jfm.2018.389⟩

International audience; We present, in this paper, numerical simulations of bubble sloshing in a spherical tank, resulting from a tank rotation around a fixed axis in microgravity conditions. This configuration is of great interest in space applicati

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::329e2ac0b91e129134c3c0c572c49331
https://doi.org/10.1017/jfm.2018.389

Plastic buckling and collapse of thin shell structures, using layered plastic modeling and co-rotational ANDES finite elements

Autor: Carlos A. Felippa, William Taylor Matias Silva, Nélvio Dal Cortivo, Henri Bavestrello

Publikováno v: Computer Methods in Applied Mechanics and Engineering. 198:785-798

This study reveals an analysis of plastic buckling and collapse of thin shell structures. For this purpose, the co-rotational and layered plastic model as well as ANDES (Assumed Natural Deviatoric Strain) finite element formulations are used. The co-

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::152faf3542ba5ccd72bdd85dfb2f3080
https://doi.org/10.1016/j.cma.2008.10.013

Information transfer between incompatible finite element meshes: Application to coupled thermo-viscoelasticity

Autor: David Dureisseix, Henri Bavestrello

Publikováno v: Computer Methods in Applied Mechanics and Engineering
Computer Methods in Applied Mechanics and Engineering, Elsevier, 2006, 195 (44-47), pp.6523-6541. ⟨10.1016/j.cma.2006.02.003⟩

International audience; This article is concerned with information transfer between non-matching finite element meshes. Such a feature is not new in the literature, but we focus herein on a geometric approach to transfer solution fields in order to b

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f4f84730ed85b5c6080f0114502f499c
https://doi.org/10.1016/j.cma.2006.02.003

Time-parallel implicit integrators for the near-real-time prediction of linear structural dynamic responses

Autor: Julien Cortial, Climène Dastillung, Henri Bavestrello, Charbel Farhat

Publikováno v: International Journal for Numerical Methods in Engineering. 67:697-724

The time-parallel framework for constructing parallel implicit time-integration algorithms (PITA) is revisited in the specific context of linear structural dynamics and near-real-time computing. The concepts of decomposing the time-domain in time-sli

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4ecc471db4d39553313cf482d54706fa
https://doi.org/10.1002/nme.1653

An extension of the FETI domain decomposition method for incompressible and nearly incompressible problems

Autor: Henri Bavestrello, Benoit Vereecke, David Dureisseix

Publikováno v: Computer Methods in Applied Mechanics and Engineering
Computer Methods in Applied Mechanics and Engineering, 2003, 192 (31-32), pp.3409-3429. ⟨10.1016/S0045-7825(03)00313-X⟩
Computer Methods in Applied Mechanics and Engineering, Elsevier, 2003, 192 (31-32), pp.3409-3429. ⟨10.1016/S0045-7825(03)00313-X⟩

International audience; Incompressible and nearly incompressible problems are treated herein with a mixed finite element formulation in order to avoid ill-conditioning that prevents accuracy in pressure estimation and lack of convergence for iterativ

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::072c21ec646b628a9a052fa1b5002790
https://hal.science/hal-00141163/file/BVHBDDpreprint.pdf