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On the Prediction of Separation-Induced Transition by Coupling Delayed Detached-Eddy Simulation with y-Transition Model

Möller, Felix and Tucker, Paul G. and Wang, Zhong-Nan and Morsbach, Christian and Bergmann, Michael (2023) On the Prediction of Separation-Induced Transition by Coupling Delayed Detached-Eddy Simulation with y-Transition Model. In: 15th European Conference on Turbomachinery Fluid Dynamics and Thermodynamics 2023, ETC 2023. 15th European Conference on Turbomachinery Fluid Dynamics & Thermodynamics, 24.-28. Apr. 2023, Budapest, Hungary. doi: 10.29008/ETC2023-375. ISSN 2410-4833.

Full text not available from this repository.

Abstract

Powerful hybrid RANS/LES methods are gaining more attention for the prediction of transitional turbomachinery flow although the combination of these two worlds (hybrid RANS/LES and transition) is not well considered yet. Therefore, we propose a coupling of DDES and the y-transition model. The intention behind this coupling is explained and illustrated with two test cases, namely the academic flat plate boundary layer test case with adverse pressure gradient and the T106C turbine cascade, which represent transitional flow with separation-induced transition. The fundamental behavior of the coupled DDES-y is assessed by the flat plate test case. Further reaching analysis is done with the turbomachinery test case T106C. Both test cases helped to understand the model coupling and yield promising results for the DDES-y model, while we showed, that the fully-turbulent DDES failed to capture relevant features of the transitional flow for low free-stream turbulence.

Item URL in elib:https://elib.dlr.de/195601/
Document Type:Conference or Workshop Item (Speech)
Title:On the Prediction of Separation-Induced Transition by Coupling Delayed Detached-Eddy Simulation with y-Transition Model
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Möller, FelixUNSPECIFIEDhttps://orcid.org/0000-0002-0192-3873148093153
Tucker, Paul G.University of CambridgeUNSPECIFIEDUNSPECIFIED
Wang, Zhong-NanUniversity of BirminghamUNSPECIFIEDUNSPECIFIED
Morsbach, ChristianUNSPECIFIEDhttps://orcid.org/0000-0002-6254-6979UNSPECIFIED
Bergmann, MichaelUNSPECIFIEDhttps://orcid.org/0000-0003-0553-5584UNSPECIFIED
Date:2023
Journal or Publication Title:15th European Conference on Turbomachinery Fluid Dynamics and Thermodynamics 2023, ETC 2023
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:No
DOI:10.29008/ETC2023-375
ISSN:2410-4833
Status:Published
Keywords:Turbulence modelling, Hybrid RANS/LES, Delayed Detached-Eddy Simulation, Transition, Flat Plate with adverse pressure gradient, Linear Turbine Cascade, T106C
Event Title:15th European Conference on Turbomachinery Fluid Dynamics & Thermodynamics
Event Location:Budapest, Hungary
Event Type:international Conference
Event Dates:24.-28. Apr. 2023
Organizer:Euroturbo
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Efficient Vehicle
DLR - Research area:Aeronautics
DLR - Program:L EV - Efficient Vehicle
DLR - Research theme (Project):L - Digital Technologies, L - Virtual Engine, L - Virtual Aircraft and  Validation
Location: Köln-Porz
Institutes and Institutions:Institute of Test and Simulation for Gas Turbines > Virtual Engine and Numerical Methods
Institute of Propulsion Technology > Numerical Methodes
Deposited By: Möller, Felix
Deposited On:26 Jun 2023 09:21
Last Modified:05 Dec 2023 11:00

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