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    • Local bisection for conformal refinement of unstructured 4D simplicial meshes 

      Belda Ferrín, Guillem; Gargallo Peiró, Abel; Roca Navarro, Francisco Javier (Springer, 2018)
      Text en actes de congrés
      Accés obert
      We present a conformal bisection procedure for local refinement of 4D unstructured simplicial meshes with bounded minimum shape quality. Specifically, we propose a recursive refine to conformity procedure in two stages, ...

    • Mesh generation, sizing and convergence for onshore and offshore wind farm Atmospheric Boundary Layer flow simulation with actuator discs 

      Gargallo Peiró, Abel; Avila, Matias; Owen, Herbert; Prieto-Godino, Luis; Folch, Arnau (Elsevier, 2018-12)
      Article
      Accés obert
      A new mesh generation process for wind farm modeling is presented together with a mesh convergence and sizing analysis for wind farm flow simulations. The generated meshes are tailored to simulate Atmospheric Boundary Layer ...

    • MÈTODES NUMÈRICS PER A EQUACIONS EN DERIVADES PARCIALS | FINAL 

      Fernández Méndez, Sonia; Gargallo Peiró, Abel; Pérez Escudero, Sergi (Universitat Politècnica de Catalunya, 2023-10-31)
      Examen
      Accés restringit a la comunitat UPC

    • On curving high-order hexahedral meshes 

      Gargallo Peiró, Abel; Ruiz Gironés, Eloi; Roca Navarro, Francisco Javier; Sarrate Ramos, Josep (Elsevier, 2015)
      Comunicació de congrés
      Accés obert
      We present a new definition of distortion and quality measures for high-order hexahedral (quadrilateral) elements. This definition leads to two direct applications. First, it can be used to check the validity and quality ...

    • Optimization of a regularized distortion measure to generate curved high-order unstructured tetrahedral meshes 

      Gargallo Peiró, Abel; Roca Navarro, Francisco Javier; Peraire Guitart, Jaume; Sarrate Ramos, Josep (2015-08-03)
      Article
      Accés obert
      We present a robust method for generating high-order nodal tetrahedral curved meshes. The approach consists of modifying an initial linear mesh by first, introducing high-order nodes, second, displacing the boundary nodes ...

    • Smoothing and untangling of meshes on parameterized surfaces 

      Gargallo Peiró, Abel (Universitat Politècnica de Catalunya, 2011-01)
      Projecte Final de Màster Oficial
      Accés obert
      The aim of this work is to develop a simultaneous smoothing-untangling procedure for parametrized surfaces. To this end we will extend the definition of the quality metrics for planar meshes to parametrized surface meshes. ...

    • Smoothing and untangling triangular meshes on surfaces 

      Gargallo Peiró, Abel (Universitat Politècnica de Catalunya, 2010-06)
      Projecte/Treball Final de Carrera
      Accés obert
      In this work it has been developed the basis of shape quality metrics for triangular meshes on surfaces. It has also been worked out a simultaneous smoothing-untangling procedure based on the ideas introduced by Escobar. ...

    • Specific-purpose globalizations for Newton’s method: anisotropic optimization of curved meshes 

      Aparicio Estrems, Guillermo; Gargallo Peiró, Abel; Roca Navarro, Francisco Javier (Barcelona Supercomputing Center, 2020-05)
      Text en actes de congrés
      Accés obert
      We derive an optimization method to adapt straight-edged and curved piece-wise polynomial meshes to the stretching and alignment of a target metric. Two globalization strategies for the optimization method are proposed: ...

    • Subdivided linear and curved meshes preserving features of a linear mesh model 

      Jiménez Ramos, Albert; Gargallo Peiró, Abel; Roca Navarro, Francisco Javier (Sandia National Laboratories, 2019)
      Text en actes de congrés
      Accés obert
      To provide straight-edged and curved piece-wise polynomial meshes that target a unique smooth geometry while preserving the sharp features and smooth regions of the model, we propose a new fast curving method based on ...

    • Subdividing linear and curved meshes preserving sharp features of a model 

      Jiménez Ramos, Albert; Gargallo Peiró, Abel; Roca, Xevi (Barcelona Supercomputing Center, 2020-05)
      Text en actes de congrés
      Accés obert
      To provide straight-edged and curved piece-wise polynomial meshes that target a unique smooth geometry while preserving the sharp features and smooth regions of the model, we propose a new fast curving method based on ...

    • Validation and generation of curved meshes for high-order unstructured methods 

      Gargallo Peiró, Abel (Universitat Politècnica de Catalunya, 2014-07-25)
      Tesi
      Accés obert
      In this thesis, a new framework to validate and generate curved high-order meshes for complex models is proposed. The main application of the proposed framework is to generate curved meshes that are suitable for finite ...

    • Validation and generation of high-order meshes on parameterized surfaces 

      Gargallo Peiró, Abel; Roca Navarro, Francisco Javier; Peraire Guitart, Jaume; Sarrate Ramos, Josep (Sociedad Española de Métodos Numéricos en Ingeniería (SEMNI), 2013)
      Text en actes de congrés
      Accés obert
      We present a technique to extend Jacobian-based distortion (quality) measures for planar triangles to high-order isoparametric elements of any interpolation degree on CAD parameterized surfaces. The resulting distortion ...