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Numerical investigation of the aerodynamic behavior of a generic light aircraft

Keller, Dennis and Farcy, Dominique and Le Roy, Jean-Francois (2019) Numerical investigation of the aerodynamic behavior of a generic light aircraft. In: 54th 3AF International Conference Aero2019. Aero2019, 25.-27. Mar 2019, Paris, France.

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The present paper summarizes the key findings of a numerical study on the aerodynamic behavior of a generic light aircraft under flow conditions, which are typically associated with spin motions. These conditions include high angles of attack, crosswind and rotational motion. Besides investigating the limits of Reynolds-averaged Navier-Stokes simulations for this type of conditions, the simulations contribute to a better understanding of existing wind-tunnel data. Furthermore, the influence of wind-tunnel related aspects such as scaling effects are investigated. The comparison between the numerical and experimental results generally shows good agreement regarding global force coefficients and separation behavior. The characteristic behavior with regards to crosswind and rotational motion around the longitudinal wind axis is captured well by the computations. Scaling effects are considerable with the maximum vertical force coefficient increasing by up to d C_Z,max=0.25 at real flight Reynolds and Mach number compared to wind-tunnel conditions.

Item URL in elib:https://elib.dlr.de/131282/
Document Type:Conference or Workshop Item (Speech)
Title:Numerical investigation of the aerodynamic behavior of a generic light aircraft
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Keller, DennisUNSPECIFIEDhttps://orcid.org/0000-0002-1471-9433UNSPECIFIED
Journal or Publication Title:54th 3AF International Conference Aero2019
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:Aerodynamics, RANS, Spin, Wind Tunnel
Event Title:Aero2019
Event Location:Paris, France
Event Type:international Conference
Event Dates:25.-27. Mar 2019
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
Deposited By: Keller, Dennis
Deposited On:06 Dec 2019 09:49
Last Modified:24 Mar 2020 15:07

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