Active Boundary Layer Control on a Highly Loaded Turbine Exit Case Profile
A highly loaded turbine exit guide vane with active boundary layer control was investigated experimentally in the High Speed Cascade Wind Tunnel at the University of the German Federal Armed Forces, Munich. The experiments include profile Mach number distributions, wake traverse measurements as well...
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Series: | International Journal of Turbomachinery, Propulsion and Power |
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Online Access: | http://www.mdpi.com/2504-186X/3/1/8 |
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doaj-77e1fef201ef41cfa292166d0f4521712020-11-24T21:07:12ZengMDPI AGInternational Journal of Turbomachinery, Propulsion and Power2504-186X2018-03-0131810.3390/ijtpp3010008ijtpp3010008Active Boundary Layer Control on a Highly Loaded Turbine Exit Case ProfileJulia Kurz0Martin Hoeger1Reinhard Niehuis2Institute of Jet Propulsion, Bundeswehr University Munich, Werner-Heisenberg-Weg 39, 85577 Neubiberg, GermanyMTU Aero Engines AG, Dachauer Str. 665, 80995 München, GermanyInstitute of Jet Propulsion, Bundeswehr University Munich, Werner-Heisenberg-Weg 39, 85577 Neubiberg, GermanyA highly loaded turbine exit guide vane with active boundary layer control was investigated experimentally in the High Speed Cascade Wind Tunnel at the University of the German Federal Armed Forces, Munich. The experiments include profile Mach number distributions, wake traverse measurements as well as boundary layer investigations with a flattened Pitot probe. Active boundary layer control by fluidic oscillators was applied to achieve improved performance in the low Reynolds number regime. Low solidity, which can be applied to reduce the number of blades, increases the risk of flow separation resulting in increased total pressure losses. Active boundary layer control is supposed to overcome these negative effects. The experiments show that active boundary layer control by fluidic oscillators is an appropriate way to suppress massive open separation bubbles in the low Reynolds number regime.http://www.mdpi.com/2504-186X/3/1/8turbine exit caseactive flow controllow Reynolds numbers |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Julia Kurz Martin Hoeger Reinhard Niehuis |
spellingShingle |
Julia Kurz Martin Hoeger Reinhard Niehuis Active Boundary Layer Control on a Highly Loaded Turbine Exit Case Profile International Journal of Turbomachinery, Propulsion and Power turbine exit case active flow control low Reynolds numbers |
author_facet |
Julia Kurz Martin Hoeger Reinhard Niehuis |
author_sort |
Julia Kurz |
title |
Active Boundary Layer Control on a Highly Loaded Turbine Exit Case Profile |
title_short |
Active Boundary Layer Control on a Highly Loaded Turbine Exit Case Profile |
title_full |
Active Boundary Layer Control on a Highly Loaded Turbine Exit Case Profile |
title_fullStr |
Active Boundary Layer Control on a Highly Loaded Turbine Exit Case Profile |
title_full_unstemmed |
Active Boundary Layer Control on a Highly Loaded Turbine Exit Case Profile |
title_sort |
active boundary layer control on a highly loaded turbine exit case profile |
publisher |
MDPI AG |
series |
International Journal of Turbomachinery, Propulsion and Power |
issn |
2504-186X |
publishDate |
2018-03-01 |
description |
A highly loaded turbine exit guide vane with active boundary layer control was investigated experimentally in the High Speed Cascade Wind Tunnel at the University of the German Federal Armed Forces, Munich. The experiments include profile Mach number distributions, wake traverse measurements as well as boundary layer investigations with a flattened Pitot probe. Active boundary layer control by fluidic oscillators was applied to achieve improved performance in the low Reynolds number regime. Low solidity, which can be applied to reduce the number of blades, increases the risk of flow separation resulting in increased total pressure losses. Active boundary layer control is supposed to overcome these negative effects. The experiments show that active boundary layer control by fluidic oscillators is an appropriate way to suppress massive open separation bubbles in the low Reynolds number regime. |
topic |
turbine exit case active flow control low Reynolds numbers |
url |
http://www.mdpi.com/2504-186X/3/1/8 |
work_keys_str_mv |
AT juliakurz activeboundarylayercontrolonahighlyloadedturbineexitcaseprofile AT martinhoeger activeboundarylayercontrolonahighlyloadedturbineexitcaseprofile AT reinhardniehuis activeboundarylayercontrolonahighlyloadedturbineexitcaseprofile |
_version_ |
1716763725720977408 |