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Highly Integrated Subsonic Air Intakes

Berens, Thomas M. and Delot, Anne-Laure and Tormalm, Magnus H. and Ruiz-Calavera, Luis P. and Funes-Sebastian, David E. and Rein, Martin and Säterskog, Michael and Ceresola, Nicola and Zurawski, Ludovic (2014) Highly Integrated Subsonic Air Intakes. Other. AD/AG-46, 58 S.

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Official URL: http://www.garteur.org/List%20of%20Reports%20GoR-AD.html

Abstract

Aerodynamic integration of air intakes with increasingly compact shaping and the optimization of their performance are challenging tasks for innovative design of advanced unmanned aerial vehicles (UAVs) featuring superior combat or reconnaissance abilities. In order to meet configurational requirements, diverterless intake designs with optimized entry shaping and sophisticated serpentine duct layout are primary goals in the overall development process. These design challenges, however, can generate intake flow characteristics, which can adversely impact the aerodynamic performance of the intake and the engine/intake compatibility. Unsteady flow physics like separation and reattachment as well as pre-entry and internal flow control imply an advanced degree of detailed understanding of the highly three-dimensional flow during the early design process. Installed thrust, range, and weight as additional key factors strongly relate to all these design requirements. Competitive aspects demand reduced development costs and short delivery times and thus are also main drivers within the UAV design process. Current diffuser flow management and control systems are largely empirically derived. Enhanced understanding of the flow physics involved in complex innovative intake design can lead to improved active and passive methodologies for controlling these internal flows. In order to reduce costly wind tunnel experiments during the development phase of aerial vehicles the ability to accurately predict the aerodynamic performance of highly integrated intakes is of great importance. The most promising simulation methods for time-accurate flow phenomena with high turbulence levels in an industrial environment are hybrid methods combining the inexpensive RANS (Reynolds- Averaged Navier-Stokes) and the accurate LES (Large Eddy Simulation) techniques.

Item URL in elib:https://elib.dlr.de/88367/
Document Type:Monograph (Other)
Title:Highly Integrated Subsonic Air Intakes
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Berens, Thomas M.CASSIDIAN EADS Deutschland GmbH, 85077 Manching, GermanyUNSPECIFIED
Delot, Anne-LaureONERA – The French Aerospace Lab, F-92190 Meudon, FranceUNSPECIFIED
Tormalm, Magnus H.Swedish Defence Research Agency (FOI), SE-16490 Stockholm, SwedenUNSPECIFIED
Ruiz-Calavera, Luis P.AIRBUS MILITARY, 28906 Getafe (Madrid), SpainUNSPECIFIED
Funes-Sebastian, David E.AIRBUS MILITARY, 28906 Getafe (Madrid), SpainUNSPECIFIED
Rein, Martinmartin.rein (at) dlr.deUNSPECIFIED
Säterskog, MichaelSAAB AB, Aeronautics, 58188 Linköping, SwedenUNSPECIFIED
Ceresola, NicolaALENIA AERMACCHI, 10146 Torino, ItalyUNSPECIFIED
Zurawski, LudovicMBDA, 92358 Le Plessis-Robinson, FranceUNSPECIFIED
Date:2014
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Number of Pages:58
Series Name:GARTEUR AD/AG-46 - GARTEUR TP–181
Status:Published
Keywords:S-duct intake, serpentine intake, diverterless intake, intake lip shaping, boundary layer ingestion, boundary layer diversion, circumferential distortion descriptor, DC60, AIP, DNW-KRG, pressure variations, detached eddy simulation (DES), Reynolds-averaged Navier-Stokes (RANS), unsteady RANS (URANS), flow control
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research (old)
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Military Technologies (old)
Location: Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > High Speed Configurations
Deposited By: Micknaus, Ilka
Deposited On:03 Apr 2014 17:13
Last Modified:03 Apr 2014 17:13

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