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Improvement of Unstructured Computational Fluid Dynamics Simulations Through Novel Mesh Generation Methodologies

Crippa, Simone (2011) Improvement of Unstructured Computational Fluid Dynamics Simulations Through Novel Mesh Generation Methodologies. Journal of Aircraft, 48 (3), pp. 1036-1044. American Institute of Aeronautics and Astronautics (AIAA). DOI: 10.2514/1.C031219 ISSN 0021-8669

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Abstract

On the basis of the DLR contribution to DPW4, a procedure to produce an unstructured grid-convergence family as self-similar as possible is documented, with a specific procedure for steering the near-field, advancing-layer process. A novel hybrid mesh generation approach is presented, in which adjoint-based dissipation error evaluations are successfully employed to improve the solution accuracy for specific conditions. An intrinsic deficit of the standard mesh generation procedure, results in an unsatisfying resolution of flow features at the wing-body junction. For this case, an alternative solution strategy based on chimera grids is tested and found to improve the aerodynamic evaluation.

Item URL in elib:https://elib.dlr.de/70381/
Document Type:Article
Title:Improvement of Unstructured Computational Fluid Dynamics Simulations Through Novel Mesh Generation Methodologies
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Crippa, Simonesimone.crippa (at) dlr.deUNSPECIFIED
Date:May 2011
Journal or Publication Title:Journal of Aircraft
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:48
DOI :10.2514/1.C031219
Page Range:pp. 1036-1044
Publisher:American Institute of Aeronautics and Astronautics (AIAA)
ISSN:0021-8669
Status:Published
Keywords:DPW4, TAU, Solar, Chimera, adjoint, error-estimation
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: Braunschweig
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > CASE
Deposited By: Crippa, Simone
Deposited On:05 Aug 2011 12:07
Last Modified:31 Jul 2019 19:32

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