A computational aeroelastic framework based on high-order structural models and high-fidelity aerodynamics
A computational aeroelastic framework based on high-order structural models and high-fidelity aerodynamics
A computational framework for high-fidelity static aeroelastic analysis is presented. Aeroelastic analysis traditionally employs a beam stick representation for the structure and potential, inviscid and irrotational flow assumptions for the aerodynamics. The unique contribution of this work is the introduction of a high-order structural formulation coupled with a high-fidelity method for the aerodynamics. In more details, the Carrera Unified Formulation coupled with the Finite Element Method is implemented to model geometrically complex composite, laminated structures as equivalent bi-dimensional plates. The open-source software SU2 is then used for the solution of the aerodynamic fields. The in-house fluid-structure coupling algorithm is based on the Moving Least Square technique. The paper contains a thorough validation of each disciplinary solver of the aeroelastic framework, and provides a few application test cases. For an unswept, untapered and isotropic wing, it was found that the method provides results in agreement with predictions from models based on potential flow theory for moderate freestream velocities. Departures were reported for very low speed and in the high-subsonic regime, alerting the need of adopting high-fidelity flow solutions at these flow conditions. The computational framework was then applied to the static aeroelastic tailoring of a composite wing. The paper concludes providing an overview of future implementation steps towards a tool for the seamless analysis of composite structures subject to different flow conditions, from low to high speed.
CFD, Carrera unified formulation, Composite structures, Equivalent plate modelling, Fluid-structure interaction, Static aeroelasticity
Grifo, Marco
be26eb12-4ee5-4ea6-9aed-79f9136b53ca
Da Ronch, Andrea
a2f36b97-b881-44e9-8a78-dd76fdf82f1a
Benedetti, Ivano
e9e465cb-8870-4dc0-bc1e-e1fd621a5d7c
21 December 2022
Grifo, Marco
be26eb12-4ee5-4ea6-9aed-79f9136b53ca
Da Ronch, Andrea
a2f36b97-b881-44e9-8a78-dd76fdf82f1a
Benedetti, Ivano
e9e465cb-8870-4dc0-bc1e-e1fd621a5d7c
Grifo, Marco, Da Ronch, Andrea and Benedetti, Ivano
(2022)
A computational aeroelastic framework based on high-order structural models and high-fidelity aerodynamics.
Aerospace Science and Technology, 132, [108069].
(doi:10.1016/j.ast.2022.108069).
Abstract
A computational framework for high-fidelity static aeroelastic analysis is presented. Aeroelastic analysis traditionally employs a beam stick representation for the structure and potential, inviscid and irrotational flow assumptions for the aerodynamics. The unique contribution of this work is the introduction of a high-order structural formulation coupled with a high-fidelity method for the aerodynamics. In more details, the Carrera Unified Formulation coupled with the Finite Element Method is implemented to model geometrically complex composite, laminated structures as equivalent bi-dimensional plates. The open-source software SU2 is then used for the solution of the aerodynamic fields. The in-house fluid-structure coupling algorithm is based on the Moving Least Square technique. The paper contains a thorough validation of each disciplinary solver of the aeroelastic framework, and provides a few application test cases. For an unswept, untapered and isotropic wing, it was found that the method provides results in agreement with predictions from models based on potential flow theory for moderate freestream velocities. Departures were reported for very low speed and in the high-subsonic regime, alerting the need of adopting high-fidelity flow solutions at these flow conditions. The computational framework was then applied to the static aeroelastic tailoring of a composite wing. The paper concludes providing an overview of future implementation steps towards a tool for the seamless analysis of composite structures subject to different flow conditions, from low to high speed.
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Accepted/In Press date: 10 December 2022
e-pub ahead of print date: 14 December 2022
Published date: 21 December 2022
Additional Information:
Funding Information:
IB and ADR acknowledge the support of the Department of Engineering of the University of Palermo through the grant Premio gruppo di ricerca 2020 .
Funding Information:
IB and ADR acknowledge the support of the Department of Engineering of the University of Palermo through the grant Premio gruppo di ricerca 2020. The Authors acknowledge the support of the computational resources of IRIDIS at the University of Southampton, UK.
Keywords:
CFD, Carrera unified formulation, Composite structures, Equivalent plate modelling, Fluid-structure interaction, Static aeroelasticity
Identifiers
Local EPrints ID: 475040
URI: http://eprints.soton.ac.uk/id/eprint/475040
ISSN: 1270-9638
PURE UUID: d14154d4-06c5-45e4-96c7-4dcfe3aea3cf
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Date deposited: 09 Mar 2023 18:38
Last modified: 14 Dec 2024 05:01
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Author:
Marco Grifo
Author:
Ivano Benedetti
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