Browsing by Author "Gargallo Peiró, Abel"
Now showing items 1-20 of 25
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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 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 ... -
Automatically imposing incremental boundary displacements for valid mesh morphing and curving
(2019-07)
Article
Open AccessWe present a new incremental mesh morphing method obtained by proposing and discretizing a solution procedure for the continuous morphing problem. Our method seeks a diffeomorphism that transforms an initial domain to a ... -
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 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 ... -
High-order mesh generation on CAD geometries
(Centre Internacional de Mètodes Numèrics en Enginyeria (CIMNE), 2013)
Conference report
Restricted access - publisher's policyWe 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 ... -
Inserting curved boundary layers for viscous flow simulation with high-order tetrahedra
(Springer, 2013)
Conference lecture
Restricted access - publisher's policyWe propose an a posteriori approach for generating curved meshes for viscous flow simulations composed by high-order tetrahedra. The proposed approach is performed in the following three steps: (1) generate a linear ... -
Interpolation of subdivision features for curved geometry modeling
(2022-04)
Article
Restricted access - publisher's policyWe 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, we devise ... -
Local bisection for conformal refinement of unstructured 4D simplicial meshes
(Springer, 2018)
Conference report
Open AccessWe 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, ... -
Local bisection for conformal refinement of unstructured 4D simplicial meshes
(Barcelona Supercomputing Center, 2019-05-07)
Conference report
Open AccessWe 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
(Elsevier, 2018-12)
Article
Open AccessA 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 ... -
On curving high-order hexahedral meshes
(Elsevier, 2015)
Conference lecture
Open AccessWe 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
(2015-08-03)
Article
Open AccessWe 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
(Universitat Politècnica de Catalunya, 2011-01)
Master thesis
Open AccessThe 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
(Universitat Politècnica de Catalunya, 2010-06)
Master thesis (pre-Bologna period)
Open AccessIn 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. ...
