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Design of the Compression System of a Geared Turbofan

Immery, Thomas and Schnoes, Markus and Vieweg, Maximilian and Nicke, Eberhard (2018) Design of the Compression System of a Geared Turbofan. Deutsche Gesellschaft für Luft- und Raumfahrt - Lilienthal-Oberth e.V.. Deutscher Luft- und Raumfahrtkongress 2018, Friedrichshafen, Germany. doi: 10.25967/480126.

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Official URL: http://publikationen.dglr.de/?tx_dglrpublications_pi1[document_id]=480126


The geared turbofan aircraft engine is an efficient type of aircraft engine. By using a gearbox, the fan can run at a different rotational speed in comparison to the shaft connecting low pressure compressor and turbine. To assess the in-house tools for preliminary design, a geared turbofan, with the same requirements as the Pratt&Whitney 1000G, is designed, including thermodynamic cycle, turbine, compressor, burner and structural mechanics. The goal of this study is the design of the compression system, composed of the low-pressure compressor, the inter-compressor duct and the high-pressure compressor. The following steps have been carried out to design the compression system: first, a preliminary design of both compressors is realized, following by a detailed design, conducted with throughflow calculations and the use of a database of optimal airfoils [1]. Three stages have been chosen for the low-pressure compressor and eight stages for the high-pressure compressor. In order to reach the target conditions for all operating points from the specifications, the schedule for the variable guide vanes has also been decided on. The final design is validated with 3D CFD calculations. Additionally, the interaction of the inter-compressor duct with the low-pressure and the highpressure compressor is investigated.

Item URL in elib:https://elib.dlr.de/123424/
Document Type:Conference or Workshop Item (Speech)
Title:Design of the Compression System of a Geared Turbofan
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Date:8 October 2018
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
Publisher:Deutsche Gesellschaft für Luft- und Raumfahrt - Lilienthal-Oberth e.V.
Keywords:Compressor, Design, Geared Turbofan, Throughflow
Event Title:Deutscher Luft- und Raumfahrtkongress 2018
Event Location:Friedrichshafen, Germany
Event Type:national Conference
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:propulsion systems
DLR - Research area:Aeronautics
DLR - Program:L ER - Engine Research
DLR - Research theme (Project):L - Fan and Compressor Technologies (old)
Location: Köln-Porz
Institutes and Institutions:Institute of Propulsion Technology > Fan and Compressor
Deposited By: Schnös, Markus
Deposited On:17 Dec 2018 09:58
Last Modified:31 Jul 2019 20:21

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