In order to improve the accuracy and efficiency of static aeroelastic calculations, a structural Moving mesh technology based on Radial Basis Function (RBF) and Transfinite Interpolation (TFI) methods has been developed to perform aerodynamic/structure coupled computing. Because the common research model (CRM) will produce elastic deformation under high Reynolds number wind tunnel test conditions, the CRM-WBT0 (wing body horizontal tail 0°) configuration is selected for calculation to verify the feasibility of the engineering application of the RBF-TFI moving mesh method. Comparing the calculation results with the spring network moving mesh method based on the background grid and the lift, moment coefficient, model deformation, and pressure distribution results measured by the European Transonic Wind Tunnel (ETW), the results show that the derivatives of lift coefficient and pitch moment coefficient to the angle of attack differs from the test results by less than 0.001; the pressure coefficient distribution on the surface of the wing at the typical spanwise position near the design lift coefficient is also in good agreement with the test results; the deflection and torsion angle of the wing are almost consistent with the deformation measurement of the test model, the torsion angle error is less than 0.1°, indicating the calculation accuracy and engineering adaptability of the moving mesh technology.
Application of RBF-TFI Moving Mesh Technology Based on Structural Grid in Static Aeroelasticity
Lect. Notes Electrical Eng.
Proceedings of the 5th China Aeronautical Science and Technology Conference ; Kapitel : 60 ; 605-613
2021-11-02
9 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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