Journal of computational fluids engineering (한국전산유체공학회지)

Korean Society of Computational Fluids Engineering (한국전산유체공학회)
권호 표지

NUMERICAL SIMULATION ON FLUID-STRUCTURE INTERACTION OF A TWO-DIMENSIONAL ORBITING FLEXIBLE FOIL

선회하는 2차원 유연 날개의 유체-구조 상호작용 모사

  • 신상묵 (부경대학교 조선해양시스템공학과)
  • Published : 2007.06.30
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Abstract

The hybrid Cartesian/immersed boundary method is applied to simulate fluid-structure interaction of a two-dimensional orbiting flexible foil. The elastic deformation of the flexible foil is modelled based on the dynamic equation of a thin-plate. At each time step, the locations and velocities of the Lagrangian control points on the flexible foil are used to reconstruct the boundary conditions for the flow solver based on the hybrid staggered/non-staggered grid. To test the developed code, the flow fields around a flapping elliptical wing are calculated. The time history of the vertical force component and the evolution of the vorticity fields are compared with recent other computations and good agreement is achieved. For the orbiting flexible foil, the vorticity fields are compared with those of the case without the deformation. The combined effects of the angle of attack and the orbit on the deformation are investigated. The grid independency study is carried out for the computed time history of the deformation at the tip.

Keywords

References

  1. Gilmanov, A., Sotiropoulos, F. and Balaras, E., 2003, "A general reconstruction algorithm for simulating flows with complex 3D immersed boundaries on Cartesian grids," Journal of Computational Physics, Vol.191, pp.660-669 https://doi.org/10.1016/S0021-9991(03)00321-8
  2. Gilmanov, A. and Sotiropoulos, F., 2005, "A hybrid Cartesian/immersed boundary method for simulating flows with 3D, geometrically complex, moving bodies," Journal of Computational Physics, Vol.207, pp.457-492 https://doi.org/10.1016/j.jcp.2005.01.020
  3. Yang, J. and Balaras, E., 2006, "An embedded-boundary formulation for large-eddy simulation of turbulent flows interacting with moving boundaries," Journal of Computational Physics, Vol.215, pp.12-40 https://doi.org/10.1016/j.jcp.2005.10.035
  4. Shin, S., Bae, S.Y., Kim, I.C., Kim, Y.J. and Goo, J.S., 2007, "Computations of flow over a flexible plate using the hybrid Cartesian/immersed boundary method," International Journal for Numerical Methods in Fluids, in press, DOI: 10.1002/fld.1459
  5. 신상묵, 김형태, 2006, "Hybrid Cartesian/Immersed Boundary법을 이용한 2차원 변형날개 주위 점성유동 해석," 대한조선학회논문집, Vol.43-5, pp.538-549 https://doi.org/10.3744/SNAK.2006.43.5.538
  6. 신상묵, 2007, "HCIB법을 이용한 변형하는 평판 주위의 3차원 유동해석," 한국전산유체공학회지, Vol.12-1, pp.1-8
  7. Eldredge, J.D., 2007, "Numerical simulation of the fluid dynamics of 2D rigid body motion with the vortex particle method," Journal of Computational Physics, Vol.221, pp.626-648 https://doi.org/10.1016/j.jcp.2006.06.038
  8. Wang, Z.J., Birch, J.M. and Dickinson, M.H., 2004, "Unsteady forces and flows in low Reynolds number hovering flight: two dimensional computations vs robotic wing experiments," Journal of Experimental Biology, Vol.207, pp.449-460 https://doi.org/10.1242/jeb.00739
  9. Hafez, M., Shatalov, A. and Wahba, E., 2006, "Numerical simulations of incompressible aerodynamic flows using viscous/inviscid interaction procedures," Computer Methods in Applied Mechanics and Engineering, Vol.195, pp.3110-3127 https://doi.org/10.1016/j.cma.2004.07.059