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An optimization based approach to multi-block structured grid generation

Sauer, Marcel (2018) An optimization based approach to multi-block structured grid generation. In: ECCOMAS - - ECFD 2018 - 6th European Conference on Computational Mechanics (Solids, Structures and Coupled Problems) / 7th European Conference on Computational Fluid Dynamics. ECCOMAS ECCM ECFD, 11. - 15. Juni 2018, Glasgow.

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Official URL: http://www.eccm-ecfd2018.org/admin/files/filePaper/p1246.pdf

Abstract

In this paper, a novel approach suited to the specific requirements of multi-block structured grid generation within design optimizations for turbomachinery components is presented. In contrast to traditional methods like elliptical and algebraic grid generation, the presented approach optimizes grid quality criteria such as cell expansion ratios, inner cell angles, and grid line curvatures. These criteria are evaluated approximately on a B-spline based abstract representation of the multi-block structured grid, which drastically reduces the degrees of freedom. The 2D mathematical formulation of the abstraction layer and the optimization procedure are presented. Automatically generated grids for 2D blade-to-blade slices of a compressor, a turbine and a tandem configuration are shown as examples

Item URL in elib:https://elib.dlr.de/120879/
Document Type:Conference or Workshop Item (Speech)
Title:An optimization based approach to multi-block structured grid generation
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Sauer, MarcelMarcel.Sauer (at) dlr.deUNSPECIFIED
Date:June 2018
Journal or Publication Title:ECCOMAS - - ECFD 2018 - 6th European Conference on Computational Mechanics (Solids, Structures and Coupled Problems) / 7th European Conference on Computational Fluid Dynamics
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Accepted
Keywords:Grid Generation, Optimization, CFD
Event Title:ECCOMAS ECCM ECFD
Event Location:Glasgow
Event Type:international Conference
Event Dates:11. - 15. Juni 2018
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:propulsion systems
DLR - Research area:Aeronautics
DLR - Program:L ER - Engine Research
DLR - Research theme (Project):L - Virtual Engine and Validation methods
Location: Köln-Porz
Institutes and Institutions:Institute of Propulsion Technology > Numerical Methodes
Deposited By: Sauer, Marcel
Deposited On:28 Jan 2019 07:20
Last Modified:31 Jul 2019 20:18

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