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Improved Mesh Morphing Based on Radial Basis Functions

Saalfeld, Birgit and Rütten, Markus and Künemund, Jens and Saalfeld, Stefan (2012) Improved Mesh Morphing Based on Radial Basis Functions. 6th European Congress on Computational Methods in Applied Sciences and Engineering (ECCOMAS 2012) , 10. - 14. Sept. 2012, Vienna, Austria.

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


CFD is a major aspect of the work by the German Aerospace Center. In order to develop an optimized flow configuration it is necessary to minimize drag. Thereto different shape variations and meshes have to be investigated. In the CFD process two kinds of realizations exist. One possibility is to create a new mesh for every configuration. The other is mesh morphing. A lot of additional time is needed to generate new CAD description and generating a mesh, even more doing the calculations from scratch is time consuming. Mesh morphing is a better solution to investigate shape variations, it means shifting the position of points in the grid. So the adapted mesh has the same cell topology as the old one. Since the old solution can be used for new computations the work flow can be accelerated. Therefore, a mesh morphing tool has been developed to create variations of existing meshes. This tool uses radial basis functions (RBF) because they are fast and stable. RBF are used to interpolate morphing vectors on scattered data based on given control points. By moving cell points in cell structure it might happen that cells become distorted. A new methodology to handle this has been invented.

Item URL in elib:https://elib.dlr.de/75596/
Document Type:Conference or Workshop Item (Speech, Paper)
Additional Information:This paper is not on the CD-ROM. --- The online itinerary provides access to and search functions for all sessions, presentations, short abstracts, and session chairs. When logged in (please create a new user) you will also be able to add sessions of your interest to your own itinerary and export it to your own calendar.
Title:Improved Mesh Morphing Based on Radial Basis Functions
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Saalfeld, Birgitbirgit.saalfeld (at) dlr.deUNSPECIFIED
Rütten, Markusmarkus.ruetten (at) dlr.deUNSPECIFIED
Künemund, Jensjens.kuenemund (at) dlr.deUNSPECIFIED
Saalfeld, Stefanstefan.saalfeld (at) gmx.deUNSPECIFIED
Refereed publication:No
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Page Range:pp. 1-13
Series Name:Conference Proceedings on CD-ROM
Keywords:CFD, mesh morphing, radial basis functions
Event Title:6th European Congress on Computational Methods in Applied Sciences and Engineering (ECCOMAS 2012)
Event Location:Vienna, Austria
Event Type:international Conference
Event Dates:10. - 14. Sept. 2012
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 - Simulation & Validation (old)
Location: Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > High Speed Configurations
Deposited By: Saalfeld, Birgit
Deposited On:01 Oct 2012 15:07
Last Modified:01 Oct 2012 15:07

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