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Reduced-order aerodynamic model for aeroelastic analysis of complex configurations in incompressible flow

Haddadpour, H ; Sharif University of Technology | 2007

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  1. Type of Document: Article
  2. DOI: 10.2514/1.20921
  3. Publisher: American Institute of Aeronautics and Astronautics Inc , 2007
  4. Abstract:
  5. A general reduced-order aeroelastic model for 3-D complex geometries in subsonic incompressible flow regimes in the continuous-time domain was developed. A boundary element method (BEM) based fluid eigenanalysis solver was integrated with a finite element method (FEM) based modal technique of structural modeling. A body assumed to be a closed surface with known solid boundaries submerged in a potential flow is considered. The wake is considered to be thin and no aerodynamic loads will be supported by it. domain. The modal formulation of the aerodynamic system must be modified with a static correction method to include at least the quasi-static contribution of the higher truncated modes. The used BEM aerodynamic modeling approach is capable of simulating arbitrary streamlined body aerodynamics, in comparison with the limited application of the slender body theory, which is widely used in the incompressible flow regime
  6. Keywords:
  7. Aerodynamics ; Boundary element method ; Computer simulation ; Finite element method ; Potential flow ; Time domain analysis ; Aerodynamic model ; Fluid eigenanalysis ; Slender body theory ; Static correction ; Incompressible flow
  8. Source: Journal of Aircraft ; Volume 44, Issue 3 , 2007 , Pages 1015-1019 ; 00218669 (ISSN)
  9. URL: https://arc.aiaa.org/doi/10.2514/1.20921