A CFD framework for aeroelastic gust load calculations

 

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dc.contributor.advisor Malan, Arnaud
dc.contributor.author Man, William Liw Tat
dc.date.accessioned 2019-02-08T14:07:43Z
dc.date.available 2019-02-08T14:07:43Z
dc.date.issued 2018
dc.identifier.citation Man, W. 2018. A CFD framework for aeroelastic gust load calculations. University of Cape Town. en_ZA
dc.identifier.uri http://hdl.handle.net/11427/29439
dc.description.abstract A Computational Fluid Dynamics (CFD) framework for the simulation of the aeroelastic response of aircraft flying under gust loading was developed. The multiphysics, Finite Volume, VertexCentered code Elementaltextsuperscript{textregistered} was employed and calculations were performed for the transonic flow regime. In the structural domain, the fuselage was treated as rigid and the wing was considered for aeroelastic calculations. The latter was represented by a beam stick model using Timoshenko beam theory in Elementaltextsuperscript{textregistered}'s structural module. The case under consideration was the NASA Common Research Model (CRM) flying at Ma = 0.86 with a 30 ft gust applied over the aircraft. Key contributions of this work included implementation of a computationally efficient gust model as well as the development of a fluidstructure interface. The latter was to transfer forces from a deforming wing skin to the wing-beam in a conservative manner while reflecting the resulting displacements on the wing surface. An interface library was developed for this purpose and 3rd order accurate Bezier curves used to recover a smooth deformed wing. The various sub-components of the aeroelastic model were rigorously validated. Following this, the developed framework was applied to the CRM under gust load conditions.
dc.language.iso eng
dc.subject.other Mechanical Engineering
dc.title A CFD framework for aeroelastic gust load calculations
dc.type Thesis / Dissertation
dc.date.updated 2019-02-07T08:30:13Z
dc.publisher.institution University of Cape Town
dc.publisher.faculty Engineering and the Built Environment
dc.publisher.department Department of Mechanical Engineering
dc.type.qualificationlevel Masters
dc.type.qualificationname MSc


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