Title: Parallel finite element solutions of nonlinear aeroelastic problems in 3D transonic flow
Abstract:A finite element method based on a Direct EulerianLagrangian formulation is presented, and used to obtained numerical solutions to nonlinear aeroelastic problems in 3D transonic flow. In this approach...A finite element method based on a Direct EulerianLagrangian formulation is presented, and used to obtained numerical solutions to nonlinear aeroelastic problems in 3D transonic flow. In this approach, the fluidstructure system is modeled as a single problem, without the introduction of normal or assumed modes. The efficacy of this approach has already been demonstrated in two-dimension al aeroelastic computations, where it has been shown to lead to a very accurate evaluation of the energy exchange between the fluid and the structure. This is an important numerical consideration in aeroelastic stability calculations. Mindlin-Reissner plate elements are used to model the wing structure, and the unsteady aerodynamic model is based on a finite element discretization of the Euler equations on an unstructured mesh. The computational model is implemented on the IBM SP2 parallel computer system, to obtain fully nonlinear static and dynamic aeroelastic solutions for both straight and swept wings in the transonic flow regime.Read More
Publication Year: 1997
Publication Date: 1997-04-07
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 8
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