Browsing by Author "Gargallo Peiró, Abel"
Now showing items 1-20 of 31
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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 hybrid meshing framework adapted to the topography to simulate atmospheric boundary layer flows
(Elsevier, 2022)
Article
Restricted access - publisher's policyA new topography adapted mesh generation framework tailored to simulate Atmospheric Boundary Layer (ABL) flows on complex terrains is presented. The mesher is fully automatic given: the maximum and minimum surface mesh ... -
A level set-based actuator disc model for turbine realignment in wind farm simulation: meshing, convergence and applications
(2022-11-24)
Article
Open AccessWe present a novel meshing and simulation approach for wind farms, featuring realignment and mesh adaptation. The turbines are modeled with actuator discs, which are discretized by means of an adaptation process to represent ... -
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 ... -
Adaptive points to estimate the Lebesgue constant on the simplex
(Barcelona Supercomputing Center, 2022-05)
Conference report
Open AccessWe present a novel adaptive sampling method to estimate the Lebesgue constant of nodal sets in n-dimensional simplices. The main application of this estimation is to assess the interpolation capabilities of a nodal ... -
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 ... -
Combining high-order metric interpolation and geometry implicitization for curved r -adaption
(Elsevier, 2023)
Article
Restricted access - publisher's policyWe detail how to use Newton’s method for distortion-based curved -adaption to a discrete high-order metric field while matching a target geometry. Specifically, we combine two terms: a distortion measuring the deviation ... -
Conformal marked bisection for local refinement of n-dimensional unstructured simplicial meshes
(Elsevier, 2022)
Article
Restricted access - publisher's policyWe 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 ... -
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 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
(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, ...
