Ara es mostren els items 13-21 de 21

    • Optimizing mesh distortion by hierarchical iteration relocation of the nodes on the CAD entities 

      Ruiz-Gironés, Eloi; Roca Navarro, Francisco Javier; Sarrate Ramos, Josep (Elsevier, 2014)
      Text en actes de congrés
      Accés obert
      Mesh untangling and smoothing is an important part of the meshing process to obtain high-quality discretizations. The usual approach consists on moving the position of the interior nodes while considering fixed the position ...
    • Preserving isotropic element size functions in adaptivity, quadrilateral and hexahedral mesh generation 

      Ruiz-Gironés, Eloi; Roca Navarro, Francisco Javier; Sarrate Ramos, Josep (2013)
      Article
      Accés restringit per política de l'editorial
      In electric circuit theory, it is of great interest to compute the effective resistance between any pair of vertices of a network, as well as the Kirchhoff Index. During the last decade these parametres have been applied ...
    • Receding front method: a new approach applied to generate hexahedral meshes of outer domains 

      Roca Navarro, Francisco Javier; Ruiz-Gironés, Eloi; Sarrate Ramos, Josep (2010)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Two of the most successful methods to generate unstructured hexahedral meshes are the grid-based methods and the advancing front methods. On the one hand, the grid-based methods generate high quality elements in the inner ...
    • Simultaneous untangling and smoothing of quadrilateral and hexahedral meshes using an object-oriented framework 

      Ruiz-Gironés, Eloi; Roca Navarro, Francisco Javier; Sarrate Ramos, Josep; Montenegro Armas, Rafael; Escobar Sánchez, José M. (2015-02-01)
      Article
      Accés obert
      In this work, we present a simultaneous untangling and smoothing technique for quadrilateral and hexahedral meshes. The algorithm iteratively improves a quadrilateral or hexahedral mesh by minimizing an objective function ...
    • Size-preserving size functions and smoothing procedures for adaptive quadrilateral mesh generation 

      Ruiz-Gironés, Eloi; Roca Navarro, Francisco Javier; Sarrate Ramos, Josep (2015-07-01)
      Article
      Accés obert
      The generation of meshes that correctly reproduce a prescribed size function is crucial for quadrilateral meshing due to two reasons. First, quadrilateral meshes are difficult to adapt to a given size field by refining or ...
    • The receding front method applied to hexahedral mesh generation of exterior domains 

      Ruiz-Gironés, Eloi; Roca Navarro, Francisco Javier; Sarrate Ramos, Josep (2011-11-30)
      Article
      Accés obert
      Two of the most successful methods to generate unstructured hexahedral meshes are the grid-based methods and the advancing front methods. On the one hand, the grid-based methods generate high-quality hexahedra in the inner ...
    • Unstructured and semi-structured hexahedral mesh generation methods 

      Sarrate Ramos, Josep; Ruiz-Gironés, Eloi; Roca Navarro, Francisco Javier (Saxe-Coburg, 2014)
      Article
      Accés obert
      Discretization techniques such as the finite element method, the finite volume method or the discontinuous Galerkin method are the most used simulation techniques in ap- plied sciences and technology. These methods rely ...
    • Using a computational domain and a three-stage node location procedure for multi-sweeping algorithms 

      Ruiz-Gironés, Eloi; Roca Navarro, Francisco Javier; Sarrate Ramos, Josep (2011)
      Article
      Accés obert
      The multi-sweeping method is one of the most used algorithms to generate hexahedral meshes for extrusion volumes. In this method the geometry is decomposed in sub-volumes by means of projecting nodes along the sweep direction ...
    • Visualization of pentatopic meshes 

      Belda Ferrín, Guillem; Ruiz-Gironés, Eloi; Roca, Xevi (Barcelona Supercomputing Center, 2020-05)
      Text en actes de congrés
      Accés obert
      We propose a simple tool to visualize 4D unstructured pentatopic meshes. The method slices unstructured 4D pentatopic meshes (fields) with an arbitrary 3D hyperplane and obtains a conformal 3D unstructured tetrahedral ...