| Autor: |
Andreas Marn, Manuel Zenz, Loris Simonassi, Franz Heitmeir, Peter A. Leitl, Richard Benauer, Asim Hafizovic |
| Rok vydání: |
2019 |
| Předmět: |
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| Zdroj: |
European Conference on Turbomachinery Fluid Dynamics and hermodynamics. |
| ISSN: |
2410-4833 |
| DOI: |
10.29008/etc2019-055 |
| Popis: |
The present work gives a closer insight into the aerodynamic parameters obtained for turbine exit guide vanes (TEGV) of a low pressure turbine (LPT) with riblets applied on their suction side. Experimental data was obtained by using an aerodynamic five-hole-probe including a thermocouple as well as a trailing edge probe. Additionally, a comparison between the flow fields of the experimental data and the numerical results, obtained by performing a steady state Reynolds-Averaged Navier-Stokes (RANS) simulation, was done. The investigated flow fields are located up- and downstream of the TEGV’s and show a good overall agreement.Additionally, aeroelastic investigations show an influence of the changed surface structure onto the vibrations of the upstream located rotor blades. For a visual examination of the flow field, oil flow visualizations are performed and compared with results obtained by CFD simulations. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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