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Publications at Chair of Aero Engines
| Citation key | 2022_heinrich_springerafcc |
|---|---|
| Author | Heinrich, A. and Herbig, M. and Peitsch, D. |
| Title of Book | Active Flow and Combustion Control 2021 |
| Pages | 153–168 |
| Year | 2022 |
| ISBN | 978-3-030-90727-3 |
| ISSN | 1612-2909 |
| DOI | 10.1007/978-3-030-90727-3_10 |
| Location | Switzerland |
| Address | Cham |
| Volume | 152 |
| Note | Paper Contributed to the Conference “Active Flow and Combustion Control 2021”, September 28–29, 2021, Berlin, Germany Technische Universität Berlin: A. Heinrich, M. Herbig, D. Peitsch |
| Editor | King, Rudibert and Peitsch, Dieter |
| Publisher | Springer International Publishing |
| Series | Notes on Numerical Fluid Mechanics and Multidisciplinary Design |
| Abstract | The development of modern gas turbines requires higher turbine inlet temperatures for an increase in thermal efficiency. With a change to a pressure gain combustion concept to increase the efficiency significantly, more challenges for the cooling of the first turbine stages must be overcome. For this purpose an array of 777 fan-shaped cooling holes on a flat plate are exposed to a series of different pulsating inflow conditions. Varying the amplitude up to 100% to the mean differential pressure, the film cooling performance is analyzed and evaluated. Adjusting the pulsating frequencies from 1 Hz–5 Hz further allows to gain a comprehensive understanding of the influence of the main parameters affecting the cooling film development. The experimental data recorded with an infrared thermography system reveals a strong impact of the pulsating inflow conditions on the adiabatic film cooling effectiveness. |