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Deterministic Stress Modelling for Transonic Compressor Flows

Stollenwerk, Stefan and Nürnberger, Dirk (2009) Deterministic Stress Modelling for Transonic Compressor Flows. In: 8th European Conference on Turbomachinery, Fluid Dynamics and Thermodynamics, pp. 267-276. Verlag der Technischen Universität Graz. ETC 2009, 2009-03-23 - 2009-03-27, Graz, Austria. ISBN 978-3-85125-036-7.

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The unsteady interaction between blade rows is very important in highly loaded compressors because of its influence on operating performance. One of the most important effects in this context is the impact of a rotor bow shock on the wake of an upstream stator blade. In order to analyze the wake-shock interactions, a generic cascade of stator blades and a transonic stator-rotor configuration are investigated numerically using time-accurate simulations. The results are compared with steady mixing-plane solutions to point out their shortcomings regarding unsteady effects and to illustrate the demands of a deterministic stress approach. A new transport model is proposed which combines the advantages of both simulation procedures, i.e. physical accuracy and computational efficiency. Deterministic stresses are added to the stationary RANS equations by means of an additional source term. After a preliminary calibration on the generic cascade, the model is applied to a real compressor configuration.

Document Type:Conference or Workshop Item (Speech, Paper)
Title:Deterministic Stress Modelling for Transonic Compressor Flows
AuthorsInstitution or Email of Authors
Stollenwerk, StefanUNSPECIFIED
Nürnberger, DirkUNSPECIFIED
Journal or Publication Title:8th European Conference on Turbomachinery, Fluid Dynamics and Thermodynamics
Refereed publication:Yes
In ISI Web of Science:No
Page Range:pp. 267-276
Publisher:Verlag der Technischen Universität Graz
Keywords:Aerodynamics, Turbomachinery, Blade Row Interaction, Deterministic Stresses, Numerical Methods
Event Title:ETC 2009
Event Location:Graz, Austria
Event Type:international Conference
Event Dates:2009-03-23 - 2009-03-27
HGF - Research field:Energy, Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics, Renewable Energies
HGF - Program Themes:other, E - no assignement
DLR - Research area:Energy, Aeronautics
DLR - Program:L - no assignement, E - no assignement
DLR - Research theme (Project):E -- no assignement, L -- no assignement
Location: Köln-Porz
Institutes and Institutions:Institute of Propulsion Technology > Numerical Methodes > Numerical Simulation
Institute of Propulsion Technology > Numerical Methodes
Institute of Propulsion Technology
Deposited By: Stefan Stollenwerk
Deposited On:14 Apr 2009
Last Modified:15 Jan 2010 01:19

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