Now showing items 1-20 of 42

  • 2013-2014 Severo Ochoa : Research Seminar Lectures at BSC : book of abstracts 

    Vázquez, Mariano; Goñi Macià, Ramon; Arís, Ruth; Jorba Casellas, Oriol; Schutgens, Nick; Kranzlmüller, Dieter; Schulz, Martin; Shi, Yong; Strassburg, Janko; Faraboschi, Paolo; Aguado Sierra, Jazmín; Saen-Oon, Suwipa; Walker, Ross C.; Cetto, Raul; Suzumura, Toyotaro; Di Tomaso, Enza; Patt, Yale; Zoppè, Monica; Jeannot, Emmanel; Klasky, Scott A. (Barcelona Super Computer Center. Education & Training team, 2014-08-05)
    Conference report
    Open Access
  • A 3D-1D cardiac-vascular computational feedbacked model 

    Santiago, Alfonso; Vázquez, Mariano; Houzeaux, Guillaume; Aguado-Sierra, Jazmin; López, Mariña; Rivero, Matías I.; Blanco Sánchez, Pablo; Watanabe, Sansuke (Barcelona Supercomputing Center, 2015-05-05)
    Conference report
    Open Access
    A first version of a cardiovascular coupled model is presented. The modelling tools are Alya, the BSC tool for biomechanical simulations; and ADAN55, the LNCC model of the arterial blood flow. The former solves the ...
  • A Chimera method for the incompressible Navier-Stokes equations 

    Houzeaux, Guillaume; Eguzkitza, Beatriz; Aubry, Romain; Owen, Herbert; Vázquez, Mariano (John Wiley & Sons, 2014-05-30)
    Article
    Open Access
    The Chimera method was developed three decades ago as a meshing simplification tool. Different components are meshed independently and then glued together using a domain decomposition technique to couple the equations ...
  • Alya: Computational Solid Mechanics for Supercomputers 

    Casoni Rero, Eva; Jérusalem, Antoine; Samaniego, Cristóbal; Eguzkitza, Beatriz; Lafortune, Pierre; Tjahjanto, Denny; Sáez, Xavier; Houzeaux, Guillaume; Vázquez, Mariano (Springer, 2014-08-13)
    Article
    Open Access
    While solid mechanics codes are now conventional tools both in industry and research, the increasingly more exigent requirements of both sectors are fuelling the need for more computational power and more advanced algorithms. ...
  • Alya: Multiphysics engineering simulation toward exascale 

    Vázquez, Mariano; Houzeaux, Guillaume; Koric, Seid; Artigues, Antoni; Aguado Sierra, Jazmin; Arís Sánchez, Ruth; Mira, Daniel; Calmet, Hadrien; Cucchietti, Fernando; Owen, Herbert; Taha, Ahmed; Dering Burness, Evan; Cela Espín, José M.; Valero Cortés, Mateo (Elsevier, 2016-05)
    Article
    Open Access
    Alya is a multi-physics simulation code developed at Barcelona Supercomputing Center (BSC). From its inception Alya code is designed using advanced High Performance Computing programming techniques to solve coupled problems ...
  • Alya: Multiphysics engineering simulation toward exascale 

    Vázquez, Mariano; Houzeaux, Guillaume; Koric, Seid; Artigues, Antoni; Aguado-Sierra, Jazmin; Arís, Ruth; Mira, Daniel; Calmet, Hadrien; Cucchietti, Fernando; Owen, Herbert; Taha, Ahmed; Burness, Evan D.; Cela, José M.; Valero Cortés, Mateo (Elsevier, 2016-02-01)
    Article
    Open Access
    Alya is a multi-physics simulation code developed at Barcelona Supercomputing Center (BSC). From its inception Alya code is designed using advanced High Performance Computing programming techniques to solve coupled problems ...
  • An introduction to FE2 multi-scale methods and why HPC is so crucial 

    Giuntoli, Guido; Vázquez, Mariano; Oller Martínez, Sergio Horacio (Barcelona Supercomputing Center, 2018-04-24)
    Conference report
    Open Access
  • An unstructured CFD approach for numerical weather prediction 

    Aubry, Romain; Vázquez, Mariano; Houzeaux, Guillaume; Cela Espín, José M.; Marras, Simone (2010)
    Conference report
    Restricted access - publisher's policy
    The aim of this paper is twofold. First, it is difficult for a newcomer in the Numerical Weather Prediction (NWP) community to find similarities with Computational Fluid Dynamics (CFD) techniques as far as the numerical ...
  • An XFEM/CZM implementation for massively parallel simulations of composites fracture 

    Vigueras, Guillermo; Sket, Federico; Samaniego, Cristobal; Wu, Ling; Noels, Ludovic; Tjahjanto, Denny; Casoni Rero, Eva; Houzeaux, Guillaume; Makradi, Ahmed; Molina-Aldareguia, Jon M.; Vázquez, Mariano; Jérusalem, Antoine (Elsevier, 2015-07)
    Article
    Open Access
    Because of their widely generalized use in many industries, composites are the subject of many research campaigns. More particularly, the development of both accurate and flexible numerical models able to capture their ...
  • A parallel coupled algorithm for the solution of deformable two-body contact problem 

    Rivero Almeida, José Miguel; Cajas, J.C.; Houzeaux, Guillaume; Vázquez, Mariano (Barcelona Supercomputing Center, 2015-05-05)
    Conference report
    Open Access
    This work presents a parallel iterative method for numerical solving frictionless contact problem for two elastic bodies. Each iterative step consists of a Dirichlet problem for the one body and a Neumann problem for ...
  • A parallel finite-element method for three-dimensional controlled-source electromagnetic forward modelling 

    Puzyrev, Vladimir; Koldan, Jelena; de la Puente, Josep; Houzeaux, Guillaume; Vázquez, Mariano; Cela, José M. (Wiley-Blackwell, 2013-02-18)
    Article
    Open Access
    We present a nodal finite-element method that can be used to compute in parallel highly accurate solutions for 3-D controlled-source electromagnetic forward modeling problems in anisotropic media. Secondary coupled-potential ...
  • Application of a Galerkin finite element scheme to atmospheric buoyant and gravity driven flows 

    Marras, Simone; Vázquez, Mariano; Jorba Casellas, Oriol; Aubry, Romain; Houzeaux, Guillaume; Baldasano Recio, José María (2010)
    Conference report
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    The application of a new finite element (FE) technique for the solution of stratified, non-hydrostatic, low-Mach number flows is introduced in the context of mesoscale atmospheric modeling. In this framework, a Compressible ...
  • A Review of Element-Based Galerkin Methods for Numerical Weather Prediction: Finite Elements, Spectral Elements, and Discontinuous Galerkin 

    Marras, Simone; Kelly, James F.; Moragues, Margarida; Müller, Andreas; Kopera, Michal A.; Vázquez, Mariano; Giraldo, Francis X.; Houzeaux, Guillaume; Jorba, Oriol (Springer, 2015-05-19)
    Article
    Open Access
    Numerical weather prediction (NWP) is in a period of transition. As resolutions increase, global models are moving towards fully nonhydrostatic dynamical cores, with the local and global models using the same governing ...
  • A variational multiscale stabilized finite element method for the solution of the Euler equations of nonhydrostatic stratified flows 

    Marras, Simone; Moragues, Margarida; Vázquez, Mariano; Jorba Casellas, Oriol; Houzeaux, Guillaume (2013-03-01)
    Article
    Restricted access - publisher's policy
    We present a compressible version of the variational multiscale stabilization (VMS) method applied to the finite element (FE) solution of the Euler equations for nonhydrostatic stratified flows. This paper is meant to ...
  • Composite materials calculation using HPC-based multiscale technique 

    Giuntoli, Guido; Vázquez, Mariano; Oller Martínez, Sergio Horacio (Barcelona Supercomputing Center, 2017-05-04)
    Conference report
    Open Access
    Calculating the behavior of large composite material structures still demanding large computational effort. The solu-tion proposed to tackle the problem is to combine multi-scale homogenization methods with the high ...
  • Coupled electromechanical model of the heart: Parallel finite element formulation 

    Lafortune, Pierre; Aris, Ruth; Vázquez, Mariano; Houzeaux, Guillaume (2012-01)
    Article
    Restricted access - publisher's policy
    In this paper, a highly parallel coupled electromechanical model of the heart is presented and assessed. The parallel-coupled model is thoroughly discussed, with scalability proven up to hundreds of cores. This work focuses ...
  • Effects of detailed ventricular anatomy on the blood flow 

    Sacco, Federica; Paun, Bruno; Jowkar, Mohammad; Houzeaux, Guillaume; Vázquez, Mariano; Aguado-Sierra, Jazmin; Butakoff, Constantine (Barcelona Supercomputing Center, 2015-05-05)
    Conference report
    Open Access
    The presented study is a preliminary test and analysis of the role of trabeculae and papillary muscles in the hemodynamics of the left ventricle (LV).
  • Evaluating the roles of detailed endocardial structures on right ventricular haemodynamics by means of CFD simulations 

    Sacco, Federica; Paun, Bruno; Lehmkuhl, Oriol; Iles, Tinen L.; Iaizzo, Paul A.; Houzeaux, Guillaume; Vázquez, Mariano; Butakoff, Constantine; Aguado-Sierra, Jazmin (Wiley, 2018-09)
    Restricted access - publisher's policy
    Computational modelling plays an important role in right ventricular (RV) haemodynamic analysis. However, current approaches use smoothed ventricular anatomies. The aim of this study is to characterise RV haemodynamics ...
  • Extension of the parallel Sparse Matrix Vector Product (SpMV) for the implicit coupling of PDEs on non-matching meshes 

    Houzeaux, Guillaume; Borrell, Ricard; Cajas, Juan Carlos; Vázquez, Mariano (Elsevier, 2018-09-15)
    Article
    Restricted access - publisher's policy
    The Sparse Matrix Vector Product (SpMV) is one of the main operations of iterative solvers, and, in a parallel context, it is also the siege of point-to-point communications between the neighboring MPI processes. The ...
  • From imaging to simulation: a framework applied to simulate the blood flow in the carotids 

    Aris, Ruth; Mani, Venkatesh; Dyvorne, Hadrien A.; Jowkar, M.; Santiago, A.; Houzeaux, G.; Fayad, Zahi; Vázquez, Mariano (Barcelona Supercomputing Center, 2015-05-05)
    Conference report
    Open Access
    In this work we present a methodology to extract information from medical imaging and use it for hemodynamical simulation in arteries. Based on in-vivo magnetic resonance images (MRI), the velocity of the blood flow has ...