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A comparative study of numerical methods for fluid structure interaction analysis in long-span bridge design

  • 발행 : 2002.04.25

초록

Both a Finite Volume and a Discrete Vortex technique to solve the unsteady Navier-Stokes equations have been employed to study the air flow around long-span bridge decks. The implementation and calibration of both methods is described alongside a quasi-3D extension added to the DVM solver. Applications to the wind engineering of bridge decks include flow simulations at different angles of attack, calculation of aerodynamic derivatives and fluid-structure interaction analyses. These are being presented and their specific features described. If a numerical method shall be employed in a practical design environment, it is judged not only by its accuracy but also by factors like versatility, computational cost and ease of use. Conclusions are drawn from the analyses to address the question of whether computer simulations can be practical design tools for the wind engineering of bridge decks.

키워드

참고문헌

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  10. Finite element simulation of the wind action over bridge sectional models: Application to the Guamá River Bridge (Pará State, Brazil) vol.44, pp.3, 2008, https://doi.org/10.1016/j.finel.2007.11.006
  11. Modelling of inflow-conditions for vortex particle methods to simulate atmospheric turbulence and its induced aerodynamic admittance on line-like bluff bodies vol.32, pp.10, 2018, https://doi.org/10.1080/10618562.2018.1542132
  12. Aerodynamic Tailoring of Structures Using Computational Fluid Dynamics vol.29, pp.1, 2019, https://doi.org/10.1080/10168664.2018.1522936
  13. Numerical investigation of the effects of pedestrian barriers on aeroelastic stability of a proposed footbridge vol.96, pp.12, 2002, https://doi.org/10.1016/j.jweia.2008.04.004
  14. A numerical investigation into the aerodynamic characteristics and aeroelastic stability of a footbridge vol.25, pp.1, 2009, https://doi.org/10.1016/j.jfluidstructs.2008.05.001
  15. Frequency and critical fluid velocity analysis of pipes reinforced with FG-CNTs conveying internal flows vol.24, pp.3, 2002, https://doi.org/10.12989/was.2017.24.3.267
  16. Comparison Metrics for Time-Histories: Application to Bridge Aerodynamics vol.146, pp.9, 2020, https://doi.org/10.1061/(asce)em.1943-7889.0001811