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Acta Aeronautica et Astronautica Sinica

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Research progress of RBF dynamic mesh technology and its application in aeroelasticity

  

  • Received:2024-07-15 Revised:2024-09-18 Online:2024-09-20 Published:2024-09-20
  • Supported by:
    Young Elite Scientists Sponsorship Program by BAST;Young Elite Scientists Sponsorship Program by CAST

Abstract: In multidisciplinary coupled calculations represented by aeroelastic calculations, structural deformation will lead to deformation of the fluid solution domain. It is necessary to develop a mesh deformation technology with good versa-tility, high computational efficiency and strong applicability to meet the calculation needs of aerodynamic forces. The dynamic mesh technology based on the radial basis function (RBF) interpolation method has strong deformation ability and is applicable to the deformation calculation of any type of mesh. It is considered to be a dynamic mesh technology with good application prospects. This article introduces the basic theory of dynamic mesh technology based on RBF, analyzes the selection scheme of basis function and compact radius of RBF, summarizes the re-search progress of acceleration algorithm and accuracy improvement method for mesh deformation technology based on RBF, introduced the hybrid dynamic mesh technology based on RBF, and finally made a brief summary of the current research status of RBF-based dynamic mesh technology in aeroelastic calculations.

Key words: radial basis function, aeroelasticity, interpolation, dynamic mesh, computational efficiency

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