Improved Turbulence Prediction in Turbomachinery Flows and the Effect on Three-Dimensional Boundary Layer Transition
For the numerical prediction of turbomachinery flows, a two-equation turbulence model in combination with a proper transition model to account for laminar boundary layers and their transition to turbulence is state of the art. This paper presents the ability of such a method (k-ω + γ-ReΘ) for turbul...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2018-07-01
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| Series: | International Journal of Turbomachinery, Propulsion and Power |
| Subjects: | |
| Online Access: | http://www.mdpi.com/2504-186X/3/3/18 |
| _version_ | 1818361457182507008 |
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| author | Christoph Bode Jens Friedrichs Dominik Frieling Florian Herbst |
| author_facet | Christoph Bode Jens Friedrichs Dominik Frieling Florian Herbst |
| author_sort | Christoph Bode |
| collection | DOAJ |
| description | For the numerical prediction of turbomachinery flows, a two-equation turbulence model in combination with a proper transition model to account for laminar boundary layers and their transition to turbulence is state of the art. This paper presents the ability of such a method (k-ω + γ-ReΘ) for turbulence prediction and the effect on three-dimensional boundary layer behavior. For this purpose, both applied models (turbulence and transition) are improved to better account for turbulence length scale effects and three-dimensional transition prediction (Bode et al., 2014 and 2016), since these are the main deficiencies in predicting such kinds of flows. The improved numerical method is validated and tested on existing turbine cascades with detailed experimental data for the viscous regions and additionally on a low-speed axial compressor rig where wake-induced transition takes place. |
| first_indexed | 2024-12-13T21:16:59Z |
| format | Article |
| id | doaj.art-bced837126b54e159f07226cbb1d79b6 |
| institution | Directory Open Access Journal |
| issn | 2504-186X |
| language | English |
| last_indexed | 2024-12-13T21:16:59Z |
| publishDate | 2018-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | International Journal of Turbomachinery, Propulsion and Power |
| spelling | doaj.art-bced837126b54e159f07226cbb1d79b62022-12-21T23:31:13ZengMDPI AGInternational Journal of Turbomachinery, Propulsion and Power2504-186X2018-07-01331810.3390/ijtpp3030018ijtpp3030018Improved Turbulence Prediction in Turbomachinery Flows and the Effect on Three-Dimensional Boundary Layer TransitionChristoph Bode0Jens Friedrichs1Dominik Frieling2Florian Herbst3Institute of Jet Propulsion and Turbomachinery, University of Braunschweig, 38108 Braunschweig, GermanyInstitute of Jet Propulsion and Turbomachinery, University of Braunschweig, 38108 Braunschweig, GermanyInstitute of Turbomachinery and Fluid Dynamics, Leibniz University of Hannover, 30167 Hannover, GermanyInstitute of Turbomachinery and Fluid Dynamics, Leibniz University of Hannover, 30167 Hannover, GermanyFor the numerical prediction of turbomachinery flows, a two-equation turbulence model in combination with a proper transition model to account for laminar boundary layers and their transition to turbulence is state of the art. This paper presents the ability of such a method (k-ω + γ-ReΘ) for turbulence prediction and the effect on three-dimensional boundary layer behavior. For this purpose, both applied models (turbulence and transition) are improved to better account for turbulence length scale effects and three-dimensional transition prediction (Bode et al., 2014 and 2016), since these are the main deficiencies in predicting such kinds of flows. The improved numerical method is validated and tested on existing turbine cascades with detailed experimental data for the viscous regions and additionally on a low-speed axial compressor rig where wake-induced transition takes place.http://www.mdpi.com/2504-186X/3/3/18computational fluid dynamicsturbulence and transition modelingboundary layer transition |
| spellingShingle | Christoph Bode Jens Friedrichs Dominik Frieling Florian Herbst Improved Turbulence Prediction in Turbomachinery Flows and the Effect on Three-Dimensional Boundary Layer Transition International Journal of Turbomachinery, Propulsion and Power computational fluid dynamics turbulence and transition modeling boundary layer transition |
| title | Improved Turbulence Prediction in Turbomachinery Flows and the Effect on Three-Dimensional Boundary Layer Transition |
| title_full | Improved Turbulence Prediction in Turbomachinery Flows and the Effect on Three-Dimensional Boundary Layer Transition |
| title_fullStr | Improved Turbulence Prediction in Turbomachinery Flows and the Effect on Three-Dimensional Boundary Layer Transition |
| title_full_unstemmed | Improved Turbulence Prediction in Turbomachinery Flows and the Effect on Three-Dimensional Boundary Layer Transition |
| title_short | Improved Turbulence Prediction in Turbomachinery Flows and the Effect on Three-Dimensional Boundary Layer Transition |
| title_sort | improved turbulence prediction in turbomachinery flows and the effect on three dimensional boundary layer transition |
| topic | computational fluid dynamics turbulence and transition modeling boundary layer transition |
| url | http://www.mdpi.com/2504-186X/3/3/18 |
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