Exploració per autor "Roca Navarro, Francisco Javier"
Ara es mostren els items 1-20 de 51
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A distortion measure to validate and generate curved high-order meshes on CAD surfaces with independence of parameterization
Gargallo Peiró, Abel; Roca Navarro, Francisco Javier; Peraire Guitart, Jaume; Sarrate Ramos, Josep (John Wiley & Sons, 2016-06)
Article
Accés obertA framework to validate and generate curved nodal high-order meshes on Computer-Aided Design (CAD) surfaces is presented. The proposed framework is of major interest to generate meshes suitable for thin-shell and 3D finite ... -
A new least-squares approximation of affine mappings for sweep algorithms
Roca Navarro, Francisco Javier; Sarrate Ramos, Josep; Huerta, Antonio (2010-06)
Article
Accés obertThis paper presents a new algorithm to generate hexahedral meshes in extrusion geometries. Several algorithms have been devised to generate hexahedral meshes by projecting the cap surfaces along a sweep path. In all of ... -
A new procedure to compute imprints in multi-sweeping algorithms
Ruiz-Gironés, Eloi; Roca Navarro, Francisco Javier; Sarrate Ramos, Josep (2009-10-25)
Text en actes de congrés
Accés obertOne of the most widely used algorithms to generate hexahedral meshes in extrusion volumes with several source and target surfaces is the multi-sweeping method. However, the multi-sweeping method is highly dependent on the ... -
A new procedure to smooth and untangle meshes on parameterized surfaces
Gargallo Peiró, Abel; Roca Navarro, Francisco Javier; Sarrate Ramos, Josep (Vienna University of Technology, 2012)
Text en actes de congrés
Accés obertWe present a technique to extend any distortion (quality) measure for planar meshes to meshes on parameterized surfaces. The resulting distortion (quality) measure is expressed in terms of the parametric coordinates of the ... -
A surface mesh smoothing and untangling method independent of the CAD parameterization
Gargallo Peiró, Abel; Roca Navarro, Francisco Javier; Sarrate Ramos, Josep (2014-04-01)
Article
Accés obertA method to optimize triangular and quadrilateral meshes on parameterized surfaces is proposed. The optimization procedure relocates the nodes on the surface to improve the quality (smooth) and ensures that the elements ... -
An augmented Lagrangian formulation to impose boundary conditions for distortion based mesh moving and curving
Ruiz Gironès, Eloi; Gargallo Peiró, Abel; Sarrate Ramos, Josep; Roca Navarro, Francisco Javier (Elsevier, 2017)
Text en actes de congrés
Accés restringit per política de l'editorialWe formulate a mesh morphing technique as mesh distortion minimization problem constrained to weakly satisfy the imposed displacement of the boundary nodes. The method is devised to penalize the appearance of inverted ... -
An automatic and general least-squares projection procedure for sweep meshing
Roca Navarro, Francisco Javier; Sarrate Ramos, Josep (2010-01-07)
Article
Accés obert -
An interactive mesh generation environment for geometry-based simulations. Progress updated
Roca Navarro, Francisco Javier; Sarrate Ramos, Josep (2009-02-16T12:15:10Z)
Text en actes de congrés
Accés obertWe presented an overview of an interactive mesh generation environment in our previous work that it is being developed in the Laboratori de Càlcul Numèric (LaCàN). We started the development of the software in order to ... -
Are high-order and hybridizable discontinuous galerkin methods competitive
Huerta, Antonio; Roca Navarro, Francisco Javier; Angeloski, Aleksander; Peraire Guitart, Jaume (2012)
Text en actes de congrés
Accés restringit per política de l'editorialThe talk covered several issues motivated by a practical engineering wave propagation problem: real-time evaluation of wave agitation in harbors. The first part, presented the application of a reduced order model in the ... -
Automatic generation of hexahedral meshes for volumes with non-planar surfaces using the multi-sweeping method
Ruiz-Gironés, Eloi; Roca Navarro, Francisco Javier; Sarrate Ramos, Josep (2010)
Text en actes de congrés
Accés obertOne of the most used algorithms to generate hexahedral meshes for extrusion volumes is the multi-sweeping method. The algorithm decomposes the geometry into many-to-one sub-volumes and then meshes each sub-volume ... -
Bisecting with optimal similarity bound on 3D unstructured conformal meshes
Belda Ferrín, Guillem; Ruiz Gironès, Eloi; Roca Navarro, Francisco Javier (2022)
Text en actes de congrés
Accés obertWe propose a new method to mark for bisection the edges of an arbitrary 3D unstructured conformal mesh. For these meshes, the approach conformingly marks all the tetrahedra with coplanar edge marks. To this end, the method ... -
Checking and improving the geometric accuracy of non-interpolating curved high-order meshes
Ruiz Gironés, Eloi; Sarrate Ramos, Josep; Roca Navarro, Francisco Javier (Elsevier, 2015)
Comunicació de congrés
Accés obert -
Combining size-preserving and smoothing procedures for adaptive quadrilateral mesh generation
Ruiz Gironés, Eloi; Roca Navarro, Francisco Javier; Sarrate Ramos, Josep (Springer, 2013)
Text en actes de congrés
Accés restringit per política de l'editorialIt is well known that the variations of the element size have to be controlled in order to generate a high-quality mesh. Hence, several techniques have been developed to limit the gradient of the element size. However, the ... -
Conformal marked bisection for local refinement of n-dimensional unstructured conformal meshes
Belda Ferrín, Guillem; Ruiz Gironès, Eloi; Roca Navarro, Francisco Javier; Gargallo Peiró, Abel (Elsevier, 2023-01-01)
Article
Accés obertWe present an n-dimensional marked bisection method for unstructured conformal meshes. We devise the method for local refinement in adaptive n-dimensional applications. To this end, we propose a mesh marking pre-process ... -
Curved geometry modeling: interpolation of subdivision features
Jiménez Ramos, Albert; Gargallo Peiró, Abel; Roca Navarro, Francisco Javier (Barcelona Supercomputing Center, 2021-05)
Text en actes de congrés
Accés obertWe present a nodal interpolation method to approximate a subdivision model. The main application is to model and represent curved geometry without gaps and preserving the required simulation intent. Accordingly, the ... -
Defining a stretching and alignment aware quality measure for linear and curved 2D meshes
Aparicio Estrems, Guillermo; Gargallo Peiró, Abel; Roca Navarro, Francisco Javier (Barcelona Supercomputing Center, 2019-05-07)
Text en actes de congrés
Accés obertWe define a regularized shape distortion (quality) measure for curved high-order 2D elements on a Riemannian plane. To this end, we measure the deviation of a given 2D element, straight-sided or curved, from the stretching ... -
Defining a stretching and alignment aware quality measure for linear and curved 2D meshes
Aparicio Estrems, Guillermo; Gargallo Peiró, Abel; Roca Navarro, Francisco Javier (Springer, 2018)
Text en actes de congrés
Accés obertWe define a regularized shape distortion (quality) measure for curved high-order 2D elements on a Riemannian plane. To this end, we measure the deviation of a given 2D element, straight-sided or curved, from the stretching ... -
Defining an2-disparity measure to check and improve the geometric accuracy of noninterpolating curved high-order meshes
Ruiz Gironés, Eloi; Sarrate Ramos, Josep; Roca Navarro, Francisco Javier (Elsevier, 2015)
Text en actes de congrés
Accés obertWe define an2-disparity measure between curved high-order meshes and parameterized manifolds in terms of an2norm. The main application of the proposed definition is to measure and improve the distance between a curved high-order ... -
Defining quality measures for validation and generation of high-order meshes
Gargallo Peiró, Abel; Roca Navarro, Francisco Javier; Peraire Guitart, Jaume; Sarrate Ramos, Josep (Springer, 2013)
Text en actes de congrés
Accés restringit per política de l'editorialA procedure to quantify the distortion (quality) of a high-order mesh composed by curved tetrahedral elements is presented. The proposed technique has two main applications. First, it can be used to check the validity and ... -
Distortion and quality measures for validating and generating high-order tetrahedral meshes
Gargallo Peiró, Abel; Roca Navarro, Francisco Javier; Peraire Guitart, Jaume; Sarrate Ramos, Josep (2015-07-01)
Article
Accés obertA procedure to quantify the distortion (quality) of a high-order mesh composed of curved tetrahedral elements is presented. The proposed technique has two main applications. First, it can be used to check the validity and ...