Results 21 to 30 of about 17,342 (259)

Anisotropic Quadrilateral Meshing: An Indirect Approach [PDF]

open access: yesCivil-Comp Proceedings, 2009
In this paper a new indirect approach is presented for anisotropic quadrilateral mesh generation based on discrete surfaces. The ability to generate grids automatically had a pervasive influence on many application areas in particularly on the field of Computational Fluid Dynamics. In spite of considerable advances in automatic grid generation there is
Merhof, Dorit   +2 more
openaire   +2 more sources

Solid Model Generation for Digitized Organic Bodies via T-Splines

open access: yesHeritage, 2020
This paper presents a workflow for B-rep solid model generation of organic objects using T-splines constructed with quad-meshes. The aim is the creation of geometrically and topologically consistent B-rep solid models of heritage objects featuring ...
Luigi Barazzetti
doaj   +1 more source

Prediction of Ship Motions Via a Three-Dimensional Time-Domain Method Following a Quad-Tree Adaptive Mesh Technique

open access: yesPolish Maritime Research, 2020
A three-dimensional (3D) time-domain method is developed to predict ship motions in waves. To evaluate the Froude-Krylov (F-K) forces and hydrostatic forces under the instantaneous incident wave profile, an adaptive mesh technique based on a quad-tree ...
Zhang Teng, Ren Junsheng, Liu Lu
doaj   +1 more source

Radial Point Interpolation-Based Error Recovery Estimates for Finite Element Solutions of Incompressible Elastic Problems

open access: yesApplied Sciences, 2023
Error estimation and adaptive applications help to control the discretization errors in finite element analysis. The study implements the radial point interpolation (RPI)-based error-recovery approaches in finite element analysis.
Nabil Ben Kahla   +2 more
doaj   +1 more source

A parallel edge orientation algorithm for quadrilateral meshes [PDF]

open access: yes, 2015
One approach to achieving correct finite element assembly is to ensure that the local orientation of facets relative to each cell in the mesh is consistent with the global orientation of that facet. Rognes et al.
Ham, David A., Homolya, Miklós
core   +2 more sources

On Optimal Bilinear Quadrilateral Meshes [PDF]

open access: yesEngineering with Computers, 1999
Two different two-dimensional quadrilateral meshes are compared. Both of them are asymptotically optimal quadrilateral meshes for bilinear approximation. In the paper interesting error properties of two types of meshes are presented. Both types of mesh are generated by a coordinate transformation of a regular mesh of squares.
openaire   +2 more sources

Effects of Mesh Generation on Modelling Aluminium Anode Baking Furnaces

open access: yesFluids, 2021
Anode baking is critical in carbon anode production for aluminium extraction. Operational and geometrical parameters have a direct impact on the performance of anode baking furnaces (ABF), and hence on the resulting anode quality.
Jose Libreros, Maria Trujillo
doaj   +1 more source

Diamond-kite adaptive quadrilateral meshing [PDF]

open access: yesEngineering with Computers, 2013
We describe a family of quadrilateral meshes based on diamonds, rhombi with 60 and 120 degree angles, and kites with 60, 90, and 120 degree angles, that can be adapted to a local size function by local subdivision operations. Our meshes use a number of elements that is within a constant factor of the minimum possible for any mesh of bounded aspect ...
openaire   +2 more sources

Blood vessel quadrilateral mesh generation

open access: yesMathematics, Computation and Geometry of Data, 2023
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Zhao, Zhou   +8 more
openaire   +1 more source

h-multigrid agglomeration based solution strategies for discontinuous Galerkin discretizations of incompressible flow problems [PDF]

open access: yes, 2017
In this work we exploit agglomeration based $h$-multigrid preconditioners to speed-up the iterative solution of discontinuous Galerkin discretizations of the Stokes and Navier-Stokes equations.
Bassi, Francesco   +2 more
core   +2 more sources

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