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Communication Dans Un Congrès Année : 2018

Comparison of low, medium and high fidelity numerical methods for unsteady aerodynamics and nonlinear aeroelasticity

Résumé

The unsteady aerodynamic and aeroelastic behaviour of a 2D wing section with and without flap is analysed with Unsteady Vortex Lattice Method and Theodorsen theory (low fidelity), Euler (medium fidelity) and Reynolds-Averaged Navier Stokes (high fidelity) methods. The aeroelastic study is carried out both for linear cases and for non-linear structural configurations presenting cubic stiffness and freeplay. The critical flutter speed as well as the limit cycle oscillations present in the non-linear cases are compared. The methods showed good agreement in capturing unsteady aerodynamics and linear and non-linear aeroelasticity for the cases studied.
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Dates et versions

hal-03487289 , version 2 (20-07-2022)
hal-03487289 , version 1 (30-05-2023)

Identifiants

  • HAL Id : hal-03487289 , version 1
  • OATAO : 29546

Citer

Claudia Fernandez-Escudero, Miguel Gagnon, Eric Laurendeau, Sébastien Prothin, Guilhem Michon, et al.. Comparison of low, medium and high fidelity numerical methods for unsteady aerodynamics and nonlinear aeroelasticity. IUTAM Symposium on Critical flow dynamics involving moving/deformable structures with design applications, Jun 2018, Santorini, Greece. pp.0. ⟨hal-03487289v1⟩
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