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Dynamic Simulation of Flight Test Manoeuvres on the Diamond D-Jet

NAFEMS International Journal of CFD Case Studies

Volume 11, April 2016

ISSN 1462-236X


Dynamic Simulation of Flight Test Manoeuvres on the Diamond D-Jet

L Van Bavel1, DM Holman2, R Brionnaud2 and M García-Camprubí2
1Diamond Aircraft Industries
2Next Limit Technologies

https://doi.org/10.59972/x8u9weq2

Keywords: Numerical Simulation, Flight Test Manoeuvres, lattice-Boltzmann and Wind Tunnel

 


Abstract

The numerical simulation of the complex fluid-structure interaction taking place when manoeuvring an aircraft remains a challenge. A realistic analysis of the airplane manoeuvrability often involves the presence of moving parts, such as the deflection of the elevators, the ailerons, or the elevons. For conventional Computational Fluid Dynamics (CFD) codes, dealing with such moving geometries is a challenging task. The following work uses software based on the lattice-Boltzmann method (LBM) to overcome these issues.
This paper presents a numerical study on the dynamic simulation of flight test manoeuvres on the Diamond D-JET, using the XFlow virtual wind tunnel. The pitch capture manoeuvre is first simulated, studying the pitch oscillation response of the aircraft. Dutch roll flight mode is then numerically reproduced. Finally, the D-JET angle of attack is evaluated in the poststall regime under controlled movements of the elevator.
Numerical results are eventually compared with the corresponding flight test data recorded by Diamond Aircraft Industries. Numerical and experimental results show reasonable agreement. It may thus be concluded that: (i) the LBM can offer the opportunity to bypass some wind tunnel testing; and (ii) the LBM can complement flight tests by helping in mitigating risks associated with flight test manoeuvres, including fully developed stalls and spin testing.

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Cite this paper

L Van Bavel, DM Holman, R Brionnaud, M García-Camprubí, Dynamic Simulation of Flight Test Manoeuvres on the Diamond D-Jet, NAFEMS International Journal of CFD Case Studies, Volume 11, 2016, Pages 47-57, https://doi.org/10.59972/x8u9weq2

 

Document Details

ReferenceCFDJ11-3
AuthorsBavel. L Holman. D Brionnaud. R García-Camprubí. M
LanguageEnglish
TypeJournal Article
Date 4th January 2016
OrganisationsDiamond Aircraft Industries Next Limit Technologies

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