抄録
This paper presents an investigation into the effect of flap on wind flow across a box girder section by a numerical study. The Reynolds Average Navier-Stokes (RANS) approach coupled with a new k-ε eddy viscosity turbulent model is utilized in study. Firstly, a comparison between the obtained results in numerical analysis and the ones in wind tunnel test is mentioned. Then, an investigation into the wind flow mechanism around the section, in the presence of flap(s) with various geometrical configurations, is conducted to clarify the significance of flap(s) in vortex-induced vibration suppression. Finally, how flap(s) disturbs the wind speed profile above the section is considered as a side effect to vehicles. The purpose of this paper is to provide useful reference for flap application to a box girder when vortex-induced oscillation occurs.
