elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Privacy Policy | Contact | Deutsch
Fontsize: [-] Text [+]

On the Application of the Discontinuous Galerkin Method to Turbomachinery Flows

Cherednichenko, Svetlana and Frey, Christian and Ashcroft, Graham (2012) On the Application of the Discontinuous Galerkin Method to Turbomachinery Flows. In: 6th European Congress on Computational Methods in Applied Sciences and Engineering, pp. 2359-2375. ECCOMAS 2012, 10.-14. Sep. 2012, Vienna, Austria. ISBN 978-3-9502481-9-7

[img] PDF
17MB

Abstract

This article describes the development of a Discontinuous Galerkin (DG) solver for 2D Euler flows with special emphasis on the implementation of robust and accurate boundary conditions for turbomachinary applications. For curved solid wall boundaries an extension of the standard linear element representation is implemented and shown to eliminate the spurious generation of entropy. Furthermore, we address the typical problem of numerical reflections arising due to the proximity of the domain boundaries to the airfoils in turbomachinary configurations. The exact two-dimensional non-reflecting entry and exit boundary conditions are integrated into the DG framework. The results demonstrate that using high-order DG discretisation schemes in combination with appropriate non-reflecting boundary conditions accurate predictions of turbomachinery flows can be obtained on coarse grids with artificial boundaries close to the blades.

Item URL in elib:https://elib.dlr.de/81221/
Document Type:Conference or Workshop Item (Speech)
Title:On the Application of the Discontinuous Galerkin Method to Turbomachinery Flows
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Cherednichenko, Svetlanasvetlana.cherednichenko (at) dlr.deUNSPECIFIED
Frey, ChristianChristian.Frey (at) dlr.deUNSPECIFIED
Ashcroft, Grahamgraham.ashcroft (at) dlr.deUNSPECIFIED
Date:September 2012
Journal or Publication Title:6th European Congress on Computational Methods in Applied Sciences and Engineering
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:pp. 2359-2375
ISBN:978-3-9502481-9-7
Status:Published
Keywords:Discontinuous Galerkin, high-order spatial discretization, non-reflecting boundary conditions, unstructures meshes
Event Title:ECCOMAS 2012
Event Location:Vienna, Austria
Event Type:international Conference
Event Dates:10.-14. Sep. 2012
Organizer:Vienna University of Technology, Institute for Mechanics of Materials and Structures, Institute of Lightweight Design and Structural Biomechanics
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: Köln-Porz
Institutes and Institutions:Institute of Propulsion Technology
Deposited By: Drapkina, Svetlana
Deposited On:20 Feb 2013 13:00
Last Modified:31 Jul 2019 19:40

Repository Staff Only: item control page

Browse
Search
Help & Contact
Information
electronic library is running on EPrints 3.3.12
Copyright © 2008-2017 German Aerospace Center (DLR). All rights reserved.