Exploració per autor "Badia, Santiago"
Ara es mostren els items 48-61 de 61
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Relaxing the roles of corners in BDDC by perturbed formulation
Badia, Santiago; Nguyen, Hieu Trung (Springer, 2017)
Capítol de llibre
Accés restringit per política de l'editorialThis book is a collection of papers presented at the 23rd International Conference on Domain Decomposition Methods in Science and Engineering, held on Jeju Island, Korea on July 6-10, 2015. Domain decomposition methods ... -
Robin-Robin preconditioned Krylov methods for fluid-structure interaction problems
Badia, Santiago; Nobell Rodríguez, Pablo; Vergara, Christian (2008-08-14)
Article
Accés obertIn this work we propose a Robin-Robin preconditioner combined with Krylov iterations for the solution of the interface system arising in fluid-structure interaction (FSI) problems. It can be seen as a partitioned FSI ... -
Robust and scalable domain decomposition solvers for unfitted finite element methods
Badia, Santiago; Verdugo Rojano, Francesc (2018-12)
Article
Accés obertUnfitted finite element methods, e.g., extended finite element techniques or the so-called finite cell method, have a great potential for large scale simulations, since they avoid the generation of body-fitted meshes and ... -
Scalable solvers for complex electromagnetics problems
Badia, Santiago; Martín Huertas, Alberto Francisco; Olm Serra, Marc (2019-09)
Article
Accés obertIn this work, we present scalable balancing domain decomposition by constraints methods for linear systems arising from arbitrary order edge finite element discretizations of multi-material and heterogeneous 3D problems. ... -
Segregated Runge-Kutta methods for the incompressible Navier-Stokes equations
Colomés Gené, Oriol; Badia, Santiago (John Wiley & Sons, 2016-02-03)
Article
Accés obertIn this work, we propose Runge-Kutta time integration schemes for the incompressible Navier-Stokes equations with two salient properties. First, velocity and pressure computations are segregated at the time integration ... -
Segregated Runge–Kutta time integration of convection-stabilized mixed finite element schemes for wall-unresolved LES of incompressible flows
Colomés Gené, Oriol; Badia, Santiago (2017-01)
Article
Accés obertIn this work, we develop a high-performance numerical framework for the large eddy simulation (LES) of incompressible flows. The spatial discretization of the nonlinear system is carried out using mixed finite element (FE) ... -
Shock capturing techniques for hp-adaptive finite elements
Hierro Fabregat, Alba; Badia, Santiago; Kus, Pavel (2016-09)
Article
Accés obertThe aim of this work is to propose an hp-adaptive algorithm for discontinuous Galerkin methods that is capable to detect the discontinuities and sharp layers and avoid the spurious oscillation of the solution around them. ... -
Simulation of high temperature superconductors and experimental validation
Olm Serra, Marc; Badia, Santiago; Martín Huertas, Alberto Francisco (2019-04)
Article
Accés obertIn this work, we present a parallel, fully-distributed finite element numerical framework to simulate the low-frequency electromagnetic behaviour of superconducting devices, which efficiently exploits high performance ... -
Space-time balancing domain decomposition
Badia, Santiago; Olm Serra, Marc (2017-03)
Article
Accés obertIn this work, we propose two-level space-time domain decomposition preconditioners for parabolic problems discretized using finite elements. They are motivated as an extension to space-time of balancing domain decomposition ... -
Stabilized continuous and discontinuous Galerkin techniques for Darcy flow.
Badia, Santiago; Codina, Ramon (2008-12-09)
Article
Accés obertWe design stabilized methods based on the variational multiscale decomposition of Darcy's problem. A model for the subscales is designed by using a heuristic Fourier analysis. This model involves a characteristic length ... -
Stokes, Maxwell and Darcy: a single finite element approximation for three model problems
Badia, Santiago; Codina, Ramon (2012-04)
Article
Accés obertIn this work we propose stabilized finite element methods for Stokes’, Maxwell’s and Darcy’s problems that accommodate any interpolation of velocities and pressures. We briefly review the formulations we have proposed ... -
The aggregated unfitted finite element method for elliptic problems
Badia, Santiago; Verdugo Rojano, Francesc; Martín Huertas, Alberto Francisco (2018-07)
Article
Accés obertUnfitted finite element techniques are valuable tools in different applications where the generation of body-fitted meshes is difficult. However, these techniques are prone to severe ill conditioning problems that obstruct ... -
Unconditionally stable operator splitting algorithms for the incompressible magnetohydrodynamics (MHD) system discretized by a stabilized finite element formulation based on projections
Badia, Santiago; Planas Badenas, Ramon; Gutiérrez Santacreu, Juan Vicente (John Wiley & Sons, 2013-01)
Article
Accés restringit per política de l'editorialIn this article we propose different splitting procedures for the transient incompressible MHD system that are unconditionally stable. We consider two levels of splitting, on one side we perform the segregation of the fluid ... -
Unified stabilized finite element formulations for the Stokes and the Darcy problems
Badia, Santiago; Codina, Ramon (2008-07-16)
Article
Accés obertIn this paper we propose stabilized finite element methods for both Stokes’ and Darcy’s problems that accommodate any interpolation of velocities and pressures. Apart from the interest of this fact, the important issue is ...