Verification of a low fidelity fast simulation framework through RANS simulations

Carrizales, Martin A.; Dussart, Ga�tan; Portapas, Vilius; Pontillo, Alessandro; Lone, Mudassir

Abstract

© 2019, The Author(s). 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.

• Journal Article Type: Article
• Acceptance Date: Jul 4, 2019
• Online Publication Date: Jul 22, 2019
• Publication Date: Jan 31, 2020
• Deposit Date: Jan 28, 2020
• Publicly Available Date: Jan 29, 2020
• Journal: CEAS Aeronautical Journal
• Print ISSN: 1869-5582
• Electronic ISSN: 1869-5590
• Publisher: Springer (part of Springer Nature)
• Peer Reviewed: Peer Reviewed
• Volume: 11
• Issue: 1
• Pages: 161-176
• DOI: https://doi.org/10.1007/s13272-019-00409-x
• Keywords: Aerospace Engineering; Transportation
• Public URL: https://uwe-repository.worktribe.com/output/5260261
• Publisher URL: https://link.springer.com/content/pdf/10.1007/s13272-019-00409-x.pdf
• Additional Information: Received: 17 April 2018; Revised: 9 April 2019; Accepted: 4 July 2019; First Online: 22 July 2019