Verification of a low fidelity fast simulation framework through RANS simulations

Date published

2019-07-22

Free to read from

Supervisor/s

Journal Title

Journal ISSN

Volume Title

Publisher

Springer

Department

Type

Article

ISSN

1869-5582

Format

Citation

Carrizales MA, Dussart G, Portapas V, et al., (2019) Verification of a low fidelity fast simulation framework through RANS simulations. CEAS Aeronautical Journal, Volume 11, January 2020, pp. 161-176

Abstract

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.

Description

Software Description

Software Language

Github

Keywords

Low fidelity aerodynamics, Aeroservoelastic framework, Reynolds averaged Navier–Stokes simulations

DOI

Rights

Attribution 4.0 International

Relationships

Relationships

Supplements

Funder/s