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This paper addresses the aero-structural shape optimization of aircraft wings by integrating high-fidelity aerodynamic models that incorporate structural flexibility. We present a fluid-structure interaction (FSI) workflow designed for non-matching Computational Fluid Dynamics (CFD) and Computational Structural Mechanics (CSM) meshes, utilizing structural modes and Radial Basis Functions (RBF) for mesh morphing. The developed methodology is applied to an industrial case study: the winglet of the Piaggio Aerospace P180 Avanti EVO aircraft. The workflow successfully couples a hybrid Finite Element Analysis (FEA) model, which combines solid and lower-dimensional elements to represent the wing assembly (beam elements for the nacelle, shell elements for the wing box and solid elements for the winglet), with a high-fidelity CFD model.

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Accurate Mapping in Fluid-Structure Interaction Analysis Across Models of Varying Fidelity Levels

  • 章节

  • 发表日期：

    2026年

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  • Corrado Groth,
  • Ubaldo Cella,
  • Andrea Chiappa,
  • Emiliano Costa,
  • Giorgio Travostino,
  • Marco E. Biancolini

摘要

This paper addresses the aero-structural shape optimization of aircraft wings by integrating high-fidelity aerodynamic models that incorporate structural flexibility. We present a fluid-structure interaction (FSI) workflow designed for non-matching Computational Fluid Dynamics (CFD) and Computational Structural Mechanics (CSM) meshes, utilizing structural modes and Radial Basis Functions (RBF) for mesh morphing. The developed methodology is applied to an industrial case study: the winglet of the Piaggio Aerospace P180 Avanti EVO aircraft. The workflow successfully couples a hybrid Finite Element Analysis (FEA) model, which combines solid and lower-dimensional elements to represent the wing assembly (beam elements for the nacelle, shell elements for the wing box and solid elements for the winglet), with a high-fidelity CFD model.