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Becker, Kai and Ashcroft, Graham (2014) A Comparative Study of Gradient Reconstruction Methods for Unstructured Meshes with Application to Turbomachinery Flows. In: 52nd Aerospace Sciences Meeting - AIAA SciTech. 52nd Aerospace Sciences Meeting - AIAA SciTech, 2014-01-13 - 2014-01-17, National Harbor, Maryland, USA. doi: 10.2514/6.2014-0069. ISBN 978 1 62410 256 1.
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Official URL: http://arc.aiaa.org/doi/book/10.2514/masm14
Abstract
The accuracy of second-order upwind spatial discretization schemes on unstructured meshes depends strongly on the accuracy of the calculated spatial gradients. In this work the Green-Gauss and least-squares methods for the calculation of spatial gradients have been implemented in a hybrid CFD solver for turbomachinery flows and analysed in the context of both academic and industrially relevant test cases. Alongside the stability and accuracy characteristics of the methods, the issues of computational overhead and implementation complexity are discussed in detail.
| Item URL in elib: | https://elib.dlr.de/88830/ | ||||||||||||
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| Document Type: | Conference or Workshop Item (Speech) | ||||||||||||
| Title: | A Comparative Study of Gradient Reconstruction Methods for Unstructured Meshes with Application to Turbomachinery Flows | ||||||||||||
| Authors: |
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| Date: | January 2014 | ||||||||||||
| Journal or Publication Title: | 52nd Aerospace Sciences Meeting - AIAA SciTech | ||||||||||||
| Refereed publication: | Yes | ||||||||||||
| Open Access: | No | ||||||||||||
| Gold Open Access: | No | ||||||||||||
| In SCOPUS: | No | ||||||||||||
| In ISI Web of Science: | No | ||||||||||||
| DOI: | 10.2514/6.2014-0069 | ||||||||||||
| ISBN: | 978 1 62410 256 1 | ||||||||||||
| Status: | Published | ||||||||||||
| Keywords: | TRACE, CFD, numerical simulation, gradients, unstructured, | ||||||||||||
| Event Title: | 52nd Aerospace Sciences Meeting - AIAA SciTech | ||||||||||||
| Event Location: | National Harbor, Maryland, USA | ||||||||||||
| Event Type: | international Conference | ||||||||||||
| Event Start Date: | 13 January 2014 | ||||||||||||
| Event End Date: | 17 January 2014 | ||||||||||||
| Organizer: | AIAA | ||||||||||||
| 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 (old) | ||||||||||||
| Location: | Köln-Porz | ||||||||||||
| Institutes and Institutions: | Institute of Propulsion Technology > Numerical Methodes | ||||||||||||
| Deposited By: | Becker, Kai | ||||||||||||
| Deposited On: | 17 Jun 2014 09:59 | ||||||||||||
| Last Modified: | 24 Apr 2024 19:54 |
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