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Verification of a low fidelity fast simulation framework through RANS simulations

Carrizales, Martin A.; Dussart, Gaétan; Portapas, Vilius; Pontillo, Alessandro; Lone, Mudassir


Martin A. Carrizales

Gaétan Dussart

Vilius Portapas

Alessandro Pontillo

Mudassir Lone


Verification and validation of simulation models are critical steps in engineering. This paper aims at verifying the suitability of reduced order aerodynamic models used in an aeroservoelastic framework designed to analyze the flight dynamics of flexible aircraft, known as the Cranfield Accelerated Aircraft Loads Model. This framework is designed for rapid assessment of aircraft configurations at the conceptual design stage. Therefore, it utilizes or relies on methods that are of relatively low fidelity for high computational speeds, such as modified strip theory coupled with Leishmann–Beddoes unsteady aerodynamic model. Hence, verification against higher order methods is required. Although low fidelity models are widely used for conceptual design and loads assessments, the open literature still lacks a comparison against higher fidelity models. This work focuses on steady-trimmed flight conditions and investigates the effect of aerodynamic wing deformation under such loads on aerodynamic performance. Key limitations of the reduced order models used, namely fuselage and interference effects, are discussed. The reasons for the overall agreement between the two approaches are also outlined.


Carrizales, M. A., Dussart, G., Portapas, V., Pontillo, A., & Lone, M. (2020). Verification of a low fidelity fast simulation framework through RANS simulations. CEAS Aeronautical Journal, 11(1), 161-176.

Journal Article Type Article
Acceptance Date Jul 4, 2019
Online Publication Date Jul 22, 2019
Publication Date 2020-01
Deposit Date Jan 23, 2023
Publicly Available Date Feb 1, 2023
Journal CEAS Aeronautical Journal
Print ISSN 1869-5582
Electronic ISSN 1869-5590
Publisher Springer Verlag
Peer Reviewed Peer Reviewed
Volume 11
Issue 1
Pages 161-176
Keywords Aerospace Engineering; Transportation
Public URL
Publisher URL


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