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Variable Cycle Engine Concepts and Component Technologies - An Overview

Carvalho, F. and Goinis, G. and Brakmann, R. G. and Zenkner, S. (2022) Variable Cycle Engine Concepts and Component Technologies - An Overview. Deutscher Luft- und Raumfahrtkongress 2022, 2022-09-27 - 2022-09-29, Dresden, Deutschland.

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The variable cycle engine (VCE) is of interest for military and supersonic civil platforms for its improved operational flexibility. However, the increase in degrees of freedom results in a more complex and non-intuitive engine behavior. Targeting this challenge, this review compiles published literature on VCEs and their variable compressor and turbine components. VCE concepts and the corresponding technology programs are presented in a chronological overview. Main optimization goals are discussed at engine level. This is followed by a discussion on the turbo-machinery components. The challenges of designing a compressor for a VCE are addressed, focusing on the main design aspects as well as operational topics, such as mode transition and control schedule design. The role of a variable geometry turbine is discussed along with associated losses. Two additional low technology readiness level variable turbine concepts are briefly presented as stimulation for future research.

Item URL in elib:https://elib.dlr.de/190474/
Document Type:Conference or Workshop Item (Speech)
Title:Variable Cycle Engine Concepts and Component Technologies - An Overview
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Carvalho, F.UNSPECIFIEDhttps://orcid.org/0000-0002-3069-8345UNSPECIFIED
Goinis, G.UNSPECIFIEDhttps://orcid.org/0000-0002-1455-7673UNSPECIFIED
Brakmann, R. G.UNSPECIFIEDhttps://orcid.org/0000-0003-3598-0742UNSPECIFIED
Zenkner, S.UNSPECIFIEDhttps://orcid.org/0000-0002-7279-591XUNSPECIFIED
Date:September 2022
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:Variable Cycle Engine; Core Driven Fan; Variable Turbine
Event Title:Deutscher Luft- und Raumfahrtkongress 2022
Event Location:Dresden, Deutschland
Event Type:national Conference
Event Start Date:27 September 2022
Event End Date:29 September 2022
Organizer:Deutsche Gesellschaft für Luft- und Raumfahrt - Lilienthal-Oberth e.V.
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Clean Propulsion
DLR - Research area:Aeronautics
DLR - Program:L CP - Clean Propulsion
DLR - Research theme (Project):L - Future Engines and Engine Integration, L - Aircraft Technologies and Integration, L - Components and Emissions
Location: Göttingen
Institutes and Institutions:Institute of Propulsion Technology > Engine
Institute of Propulsion Technology > Turbine
Institute of Propulsion Technology > Fan and Compressor
Deposited By: Carvalho, Francisco
Deposited On:08 Dec 2022 09:48
Last Modified:24 Apr 2024 20:51

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