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Aerodynamic Analysis of a Transport Aircraft with a Boundary Layer Ingesting Aft-Propulsor at Cruise Flight Conditions

Stürmer, Arne and Spinner, Sebastian and Trost, Marco and Schnell, Rainer (2022) Aerodynamic Analysis of a Transport Aircraft with a Boundary Layer Ingesting Aft-Propulsor at Cruise Flight Conditions. In: AIAA Aviation 2022 Forum, pp. 1-16. American Institute of Aeronautics and Astronautics, Inc.. AIAA AVIATION 2022 Forum, 27. Jun. - 01. Jul 2022, Chicago, IL, USA. doi: 10.2514/6.2022-3301.

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Official URL: https://arc.aiaa.org/doi/abs/10.2514/6.2022-3301


The implementation of advanced propulsion systems to ensure aviation meets the increasingly stringent environmental and economic pressures is a key building block in the development of future transport aircraft. A promising technology is the utilization of boundary layer ingesting (BLI) propulsion concepts, which are seen to offer an improvement of the engine propulsive efficiency in tandem with a reduction of the overall aircraft wake dissipation losses. In a collaborative study between the DLR Institute of Aerodynamics and Flow Technology, the DLR Institute of Propulsion Technology and industrial partners, a comprehensive study of the potential of implementing BLI concepts for future single-aisle short-to-medium range transport aircraft has been conducted. The present paper presents the result of an overall aircraft aerodynamic study, in which an aft BLI propulsor, specifically designed for this particular application, is investigated in its installation on the tail of a single aisle aircraft configuration at cruise flight conditions. A detailed aerodynamic analysis is presented, with a focus on comparing the results achievable through various BLI engine modeling approaches, which include the use of a classical engine boundary condition, a body force model as well as a full representation of the fan and OGV stage in a uRANS simulation approach. In addition to the study of the mutual aerodynamic interactions between the airframe and propulsor, some key aspects of the highest fidelity uRANS simulation approach are also discussed.

Item URL in elib:https://elib.dlr.de/190186/
Document Type:Conference or Workshop Item (Speech)
Additional Information:View Video Presentation: https://doi.org/10.2514/6.2022-3301.vid
Title:Aerodynamic Analysis of a Transport Aircraft with a Boundary Layer Ingesting Aft-Propulsor at Cruise Flight Conditions
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Date:20 June 2022
Journal or Publication Title:AIAA Aviation 2022 Forum
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
Page Range:pp. 1-16
EditorsEmailEditor's ORCID iDORCID Put Code
Publisher:American Institute of Aeronautics and Astronautics, Inc.
Keywords:aerodynamik, triebwerksintegration, simulation, Grenzschicht, Fan
Event Title:AIAA AVIATION 2022 Forum
Event Location:Chicago, IL, USA
Event Type:international Conference
Event Dates:27. Jun. - 01. Jul 2022
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
Location: Braunschweig , Köln-Porz
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > Transport Aircraft
Institute of Propulsion Technology > Fan and Compressor
Deposited By: Stürmer, Arne
Deposited On:01 Dec 2022 08:51
Last Modified:01 Dec 2022 08:51

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