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A Comparative Study of Gradient Reconstruction Methods for Unstructured Meshes with Application to Turbomachinery Flows

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, 13.-17. Jan. 2014, National Harbor, Maryland, USA. ISBN 978 1 62410 256 1

Full text not available from this repository.

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/
Document Type:Conference or Workshop Item (Speech)
Title:A Comparative Study of Gradient Reconstruction Methods for Unstructured Meshes with Application to Turbomachinery Flows
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Becker, Kaikai.becker (at) dlr.deUNSPECIFIED
Ashcroft, Grahamgraham.ashcroft (at) dlr.deUNSPECIFIED
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
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 Dates:13.-17. Jan. 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
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:23 Jun 2014 08:16

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