Aerodynamic load of an aircraft with a highly elastic wing
Periodikum: Acta Polytechnica
Klíčová slova: aerodynamics, panel method, finite element method, wing load, aerodynamika, panelová metoda, metoda konečných prvků, zatížení křídla
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Anotace: In this article, a method for calculation of air loads of an aircraft with an elastic wing is presented. The method can predict a redistribution of air loads when the elastic wing deforms. Unlike the traditional Euler or Navier-Stokes CFD to FEM coupling, the method uses 3D panel method as a source of aerodynamic data. This makes the calculation feasible on a typical recent workstation. Due to a short computational time and low hardware demands this method is suitable for both the preliminary design stage and the load evaluation stage. A case study is presented. The study compares a glider wing performing a pull maneuver at both rigid and and elastic state. The study indicates a significant redistribution of air load at the elastic case.