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Stollenwerk, Stefan and Nürnberger, Dirk (2008) A Model for Potential Deterministic Effects in Turbomachinery Flows. In: World Congress on Engineering 2008, 2, pp. 1386-1391. Newswood Limited. The 2008 International Conference of Mechanical Engineering, 2008-07-02 - 2008-07-04, London (U.K.). ISBN 978-988-17012-3-7
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Abstract
The unsteady interaction between blade rows due to a potential field is very important in highly loaded compressors because of its impact on operating performance. In this context the interactions of a flat plate wake with an upstream running pressure wave is investigated numerically using the compressible Navier-Stokes solver TRACE. Several flow conditions regarding Reynolds number, pressure wave amplitude and the axial position of the wave entry plane are examined. The observed phenomena and dependencies are used to develop a transport model which adds deterministic stresses by means of source terms to the stationary simulation. Calculations based on the proposed model are described and compared with the time-accurate and steady-state numerical simulations. The model captures the influence of the unsteady effects on the time-mean flow accurately and yields a speedup factor of approximately two orders of magnitude compared to time-accurate simulations.
| Item URL in elib: | https://elib.dlr.de/57465/ | |||||||||
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| Document Type: | Conference or Workshop Item (Speech, Paper) | |||||||||
| Title: | A Model for Potential Deterministic Effects in Turbomachinery Flows | |||||||||
| Authors: |
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| Date: | July 2008 | |||||||||
| Journal or Publication Title: | World Congress on Engineering 2008 | |||||||||
| Refereed publication: | Yes | |||||||||
| Open Access: | No | |||||||||
| Gold Open Access: | No | |||||||||
| In SCOPUS: | No | |||||||||
| In ISI Web of Science: | No | |||||||||
| Volume: | 2 | |||||||||
| Page Range: | pp. 1386-1391 | |||||||||
| Editors: |
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| Publisher: | Newswood Limited | |||||||||
| Series Name: | Lecture Notes in Engineering and Computer Science | |||||||||
| ISBN: | 978-988-17012-3-7 | |||||||||
| Status: | Published | |||||||||
| Keywords: | Aerodynamics, Turbomachinery, Blade Row Interaction, Deterministic Stresses, Numerical Methods | |||||||||
| Event Title: | The 2008 International Conference of Mechanical Engineering | |||||||||
| Event Location: | London (U.K.) | |||||||||
| Event Type: | international Conference | |||||||||
| Event Dates: | 2008-07-02 - 2008-07-04 | |||||||||
| Organizer: | International Association of Engineers | |||||||||
| HGF - Research field: | Aeronautics, Space and Transport (old) | |||||||||
| HGF - Program: | Aeronautics | |||||||||
| HGF - Program Themes: | Propulsion Systems (old) | |||||||||
| 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: | Stollenwerk, Stefan | |||||||||
| Deposited On: | 19 Jan 2009 | |||||||||
| Last Modified: | 27 Apr 2009 15:44 |
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