Browsing by Author "Roca Navarro, Francisco Javier"
Now showing items 1-20 of 51
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A distortion measure to validate and generate curved high-order meshes on CAD surfaces with independence of parameterization
(John Wiley & Sons, 2016-06)
Article
Open AccessA 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
(2010-06)
Article
Open AccessThis 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
(2009-10-25)
Conference report
Open AccessOne 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
(Vienna University of Technology, 2012)
Conference report
Open AccessWe 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
(2014-04-01)
Article
Open AccessA 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
(Elsevier, 2017)
Conference report
Restricted access - publisher's policyWe 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
(2010-01-07)
Article
Open Access -
An interactive mesh generation environment for geometry-based simulations. Progress updated
(2009-02-16T12:15:10Z)
Conference report
Open AccessWe 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
(2012)
Conference report
Restricted access - publisher's policyThe 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
(2010)
Conference report
Open AccessOne 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
(2022)
Conference report
Open AccessWe 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
(Elsevier, 2015)
Conference lecture
Open Access -
Combining size-preserving and smoothing procedures for adaptive quadrilateral mesh generation
(Springer, 2013)
Conference report
Restricted access - publisher's policyIt 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
(Elsevier, 2023-01-01)
Article
Open AccessWe 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
(Barcelona Supercomputing Center, 2021-05)
Conference report
Open AccessWe 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
(Barcelona Supercomputing Center, 2019-05-07)
Conference report
Open AccessWe 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
(Springer, 2018)
Conference report
Open AccessWe 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
(Elsevier, 2015)
Conference report
Open AccessWe 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
(Springer, 2013)
Conference report
Restricted access - publisher's policyA 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
(2015-07-01)
Article
Open AccessA 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 ...
