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Nacelle Strake Design for Short Takeoff and Landing Configuration with Turboprop Engines

Keller, Dennis and Hasan, Yasim Julian and Rudnik, Ralf (2018) Nacelle Strake Design for Short Takeoff and Landing Configuration with Turboprop Engines. Journal of Aircraft, 55 (6), pp. 2444-2453. American Institute of Aeronautics and Astronautics (AIAA). doi: 10.2514/1.C035065. ISSN 0021-8669.

Full text not available from this repository.

Official URL: https://doi.org/10.2514/1.C035065


The scope of this Paper is to investigate the Integration effects of turboprop engines on a high-lift wing with an internally blown plain flap system with Reynolds-averaged Navier–Stokes computations. It is shown that the resulting nacelle vortices can significantly reduce the high-lift performance at zero thrust conditions. To limit the negative impact, an inboard nacelle strake was designed with the aim of maximizing the lift coefficient of the landing configuration at zero thrust. To reach this goal, a sensitivity study on basic geometric strake parameters was carried out. The best nacelle strake is able to improve the maximum lift coefficient by ΔCL,max � 0.17 and the maximum angle of attack by 3 deg. The study also reveals the further potential of improvement due to an additional outboard strake. First simulations with outboard strake lead to a further improvement of ΔCL; max � 0.13 and 4 deg in the maximum angle of attack. It is also shown that the installation of an inboard strake does not negatively impact the high-lift performance at a moderate thrust level.

Item URL in elib:https://elib.dlr.de/124528/
Document Type:Article
Title:Nacelle Strake Design for Short Takeoff and Landing Configuration with Turboprop Engines
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Keller, DennisUNSPECIFIEDhttps://orcid.org/0000-0002-1471-9433UNSPECIFIED
Hasan, Yasim JulianUNSPECIFIEDhttps://orcid.org/0000-0002-5081-223XUNSPECIFIED
Date:October 2018
Journal or Publication Title:Journal of Aircraft
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
Page Range:pp. 2444-2453
Publisher:American Institute of Aeronautics and Astronautics (AIAA)
Keywords:Applied Aerodynamics Engine Integration Circulation Control Strake Propeller High-Lift
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Simulation and Validation (old)
Location: Braunschweig
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > Transport Aircraft
Institute of Flight Systems > Flight Dynamics and Simulation
Deposited By: Keller, Dennis
Deposited On:13 Dec 2018 10:41
Last Modified:13 Jun 2023 14:40

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