Exploració per tema "Multiscale modeling--Computer simulation"

Ara es mostren els items 1-5 de 5

    • A consistent relaxation of optimal design problems for coupling shape and topological derivatives 

      Amstutz, Samuel; Dapogny, Charles; Ferrer Ferré, Àlex (2018-09)
      Article
      Accés obert
      In this article, we introduce and analyze a general procedure for approximating a ‘black and white’ shape and topology optimization problem with a density optimization problem, allowing for the presence of ‘grayscale’ ...

    • Local preconditioning and variational multiscale stabilization for Euler compressible steady flow 

      Moragues, Margarida; Vázquez, Mariano; Houzeaux, Guillaume (Elsevier, 2016)
      Article
      Accés obert
      This paper introduces a preconditioned variational multiscale stabilization (P-VMS) method for compressible flows. In this introductory paper we focus on inviscid flow and steady state problems. The Euler equations are ...

    • Parallel Mesh Partitioning in Alya 

      Artigues, Antoni; Houzeaux, Guillaume (2015)
      Report de recerca
      Accés obert
      The Alya System is the BSC simulation code for multi-physics problems [1]. It is based on a Variational Multiscale Finite Element Method for unstructured meshes. Work distribution is achieved by partitioning the original ...

    • Two-scale topology optimization in computational material design: an integrated approach 

      Ferrer Ferré, Àlex; Cante Terán, Juan Carlos; Hernández Ortega, Joaquín Alberto; Oliver Olivella, Xavier (John Wiley & Sons, 2018-04)
      Article
      Accés obert
      In this work, a new strategy for solving multiscale topology optimization problems is presented. An alternate direction algorithm and a precomputed offline microstructure database (Computational Vademecum) are used to ...

    • Vademecum-based approach to multi-scale topological material design 

      Ferrer Ferré, Àlex; Oliver Olivella, Xavier; Cante Terán, Juan Carlos; Lloberas Valls, Oriol (Springer, 2016-12)
      Article
      Accés obert
      The work deals on computational design of structural materials by resorting to computational homogenization and topological optimization techniques. The goal is then to minimize the structural (macro-scale) compliance by ...