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3D Anisotropic Delaunay Meshing for Ideal Interfacing to Block-Unstructured Mixed Meshes Using a Sparse Octree for Metric Size Propagation

Wild, Jochen (2012) 3D Anisotropic Delaunay Meshing for Ideal Interfacing to Block-Unstructured Mixed Meshes Using a Sparse Octree for Metric Size Propagation. In: Proceedings on CD-Rom, p. 2541. ECCOMAS 2012, 10.-14. Sept. 2012, Wien, Austria. ISBN 978-3-9502481-9-7

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Official URL: http://eccomas2012.conf.tuwien.ac.at

Abstract

Generating smooth mixed block-unstructured meshes is a promising way to reduce mesh sizes for outer aerodynamic flow analysis. Beyond the core part of the mesh generation, the smooth meshing of the boundary layer region by structured hexahedrons and prisms, for the remaining flow field a triangulation method is needed that allows for a smooth transition between the different element types. This paper outlines the details of the final brick of the mixed meshing method, an anisotropic triangulation method to generate bounding element conforming tetrahedral meshes. A special emphasis is put on a new sparse octree method for memory and time efficient propagation of the underlying propagation of the anisotropic met-ric information in the mesh domain. The contribution presents modifications to a Delaunay-type meshing kernel together with a special sparse octree structure for memory efficient propagation of anisotropic size information. The benefits of the method are outlined for two common aerodynamic configurations, the ONERA M6 wing and the Boeing CRM configura-tion, known from the 4th AIAA drag prediction workshop.

Item URL in elib:https://elib.dlr.de/80213/
Document Type:Conference or Workshop Item (Speech, Paper)
Title:3D Anisotropic Delaunay Meshing for Ideal Interfacing to Block-Unstructured Mixed Meshes Using a Sparse Octree for Metric Size Propagation
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Wild, JochenDLR AS-TFUNSPECIFIED
Date:September 2012
Journal or Publication Title:Proceedings on CD-Rom
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:p. 2541
ISBN:978-3-9502481-9-7
Status:Published
Keywords:Grid generation, Anisotropic Meshing, Data Structures
Event Title:ECCOMAS 2012
Event Location:Wien, Austria
Event Type:international Conference
Event Dates:10.-14. Sept. 2012
Organizer:TU Wien/ECCOMAS
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research (old)
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Flight Physics (old)
Location: Braunschweig
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Transport Aircraft
Deposited By: Wild, Dr.-Ing. Jochen
Deposited On:08 Jan 2013 09:29
Last Modified:31 Jul 2019 19:39

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