A numerical investigation of Reynolds number sensitivity on flow past a twin-box girder was
performed using large eddy simulation (LES) with Reynolds numbers of 1e2≤ Re≤ 1e7.
The simulation results reveal that the flow characteristics around the twin-box girder show
different Reynolds number sensitivity according to the flow region and the flow state. At the
leading edge, the flow experiences laminar separation-laminar reattachment state (1.5 e3<
Re< 6e3), laminar separation-turbulence reattachment state (6e3≤ Re≤ 8e4), and …