Details
| Original language | English |
|---|---|
| Title of host publication | ASME Turbo Expo |
| Subtitle of host publication | 13C: Turbomachinery - Deposition, Erosion, Fouling, and Icing; Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions |
| Publisher | American Society of Mechanical Engineers(ASME) |
| ISBN (print) | 9780791887103 |
| Publication status | Published - 2023 |
| Event | ASME Turbo Expo 2023: Turbomachinery Technical Conference and Exposition, GT 2023 - Boston, United States Duration: 26 Jun 2023 → 30 Jun 2023 |
Abstract
In this paper, we present a model extension, which enhances the sensitivity two-equation linear eddy-viscosity turbulence models to an altered turbulence production and decay in rotational flow regions. In order to achieve this, the respective production terms of the turbulent kinetic energy and turbulent dissipation rate of the k-ω shear-stress transport (SST) turbulence model are modified using a rotation-sensitive detection term based on the von Kármán length scale.
Keywords
- rotational effects, secondary flow, Turbulence modelling
ASJC Scopus subject areas
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ASME Turbo Expo : 13C: Turbomachinery - Deposition, Erosion, Fouling, and Icing; Design Methods and CFD Modeling for Turbomachinery; Ducts, Noise, and Component Interactions. American Society of Mechanical Engineers(ASME), 2023. v13ct32a036.
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
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TY - GEN
T1 - Improved Prediction of Secondary-Flow Behaviour Through a Novel Turbulence Model Extension for Rotational Effects
AU - Mimic, Dajan
AU - Herbst, Florian
N1 - Funding Information: We gratefully acknowledge MTU Aero Engines for providing the cascade geometry and the Institute of Jet Propulsion at Bundeswehr University Munich for providing experimental data. Furthermore, we thank Viktor Köpplin for his contributions to this project. We also gratefully acknowledge the contribution of the DLR Institute of Propulsion Technology and MTU Aero Engines for providing TRACE. We would like to acknowledge the funding by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany's Excellence Strategy EXC 2163/1 Sustainable and Energy Efficient Aviation Project ID 390881007. We thank the Leibniz Universität Hannover IT Services (LUIS) for providing computational resources.
PY - 2023
Y1 - 2023
N2 - In this paper, we present a model extension, which enhances the sensitivity two-equation linear eddy-viscosity turbulence models to an altered turbulence production and decay in rotational flow regions. In order to achieve this, the respective production terms of the turbulent kinetic energy and turbulent dissipation rate of the k-ω shear-stress transport (SST) turbulence model are modified using a rotation-sensitive detection term based on the von Kármán length scale.
AB - In this paper, we present a model extension, which enhances the sensitivity two-equation linear eddy-viscosity turbulence models to an altered turbulence production and decay in rotational flow regions. In order to achieve this, the respective production terms of the turbulent kinetic energy and turbulent dissipation rate of the k-ω shear-stress transport (SST) turbulence model are modified using a rotation-sensitive detection term based on the von Kármán length scale.
KW - rotational effects
KW - secondary flow
KW - Turbulence modelling
UR - http://www.scopus.com/inward/record.url?scp=85177206364&partnerID=8YFLogxK
U2 - 10.1115/GT2023-103749
DO - 10.1115/GT2023-103749
M3 - Conference contribution
AN - SCOPUS:85177206364
SN - 9780791887103
BT - ASME Turbo Expo
PB - American Society of Mechanical Engineers(ASME)
T2 - ASME Turbo Expo 2023: Turbomachinery Technical Conference and Exposition, GT 2023
Y2 - 26 June 2023 through 30 June 2023
ER -