Impact of tetrahedralization on parallel conforming octree mesh generation

2014 ◽  
Vol 75 (11) ◽  
pp. 800-814 ◽  
Author(s):  
Igor T. Ghisi ◽  
Jose J. Camata ◽  
Alvaro L. G. A. Coutinho
Keyword(s):  
Mesh Generation ◽  
Octree Mesh

scholarly journals D2.2 First release of the octree mesh-generation capabilities and of the parallel mesh adaptation kernel

2021 ◽  
Author(s):  
A. Martín ◽  
L. Cirrottola ◽  
A. Froehly ◽  
R. Rossi ◽  
C. Soriano
Keyword(s):  
Finite Element ◽  
Mesh Generation ◽  
Adaptive Mesh Refinement ◽  
Adaptive Mesh ◽  
Mesh Adaptation ◽  
The Other ◽  
Project Proposal ◽  
Parallel Mesh Adaptation ◽  
Algebraic Constraints ◽  
Octree Mesh

This document presents a description of the octree mesh-generation capabilities and of the parallel mesh adaptation kernel. As it is discussed in Section 1.3.2 of part B of the project proposal there are two parallel research lines aimed at developing scalable adaptive mesh refinement (AMR) algorithms and implementations. The first one is based on using octree-based mesh generation and adaptation for the whole simulation in combination with unfitted finite element methods (FEMs) and the use of algebraic constraints to deal with non-conformity of spaces. On the other hand the second strategy is based on the use of an initial octree mesh that, after make it conforming through the addition of templatebased tetrahedral refinements, is adapted anisotropically during the calculation. Regarding the first strategy the following items are included:

Mesh generation for computational analysis. Part I: Electromagnetic and technical considerations for mesh generation

1986 ◽  
Vol 3 (5) ◽  
pp. 190 ◽  
Author(s):  
T.I. Boubez ◽  
W.R.J. Funnell ◽  
D.A. Lowther ◽  
A.R. Pinchuk ◽  
P.P. Silvester
Keyword(s):  
Mesh Generation ◽  
Computational Analysis ◽  
Technical Considerations

Multiscale mesh generation on the sphere

2008 ◽  
Vol 58 (5-6) ◽  
pp. 461-473 ◽  
Author(s):  
Jonathan Lambrechts ◽  
Richard Comblen ◽  
Vincent Legat ◽  
Christophe Geuzaine ◽  
Jean-François Remacle
Keyword(s):  
Mesh Generation

scholarly journals Cartesian Mesh Generation with Local Refinement for Immersed Boundary Approaches

2021 ◽  
Vol 9 (6) ◽  
pp. 572
Author(s):  
Luca Di Di Angelo ◽  
Francesco Duronio ◽  
Angelo De De Vita ◽  
Andrea Di Di Mascio
Keyword(s):  
Mesh Generation ◽  
Cfd Simulation ◽  
Automatic Generation ◽  
Uniform Grid ◽  
Immersed Boundary ◽  
Adaptive Grids ◽  
Local Refinement ◽  
User Interactions ◽  
Cartesian Mesh ◽  
Time Required

In this paper, an efficient and robust Cartesian Mesh Generation with Local Refinement for an Immersed Boundary Approach is proposed, whose key feature is the capability of high Reynolds number simulations by the use of wall function models, bypassing the need for accurate boundary layer discretization. Starting from the discrete manifold model of the object to be analyzed, the proposed model generates Cartesian adaptive grids for a CFD simulation, with minimal user interactions; the most innovative aspect of this approach is that the automatic generation is based on the segmentation of the surfaces enveloping the object to be analyzed. The aim of this paper is to show that this automatic workflow is robust and enables to get quantitative results on geometrically complex configurations such as marine vehicles. To this purpose, the proposed methodology has been applied to the simulation of the flow past a BB2 submarine, discretized by non-uniform grid density. The obtained results are comparable with those obtained by classical body-fitted approaches but with a significant reduction of the time required for the mesh generation.

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