Numerical Investigation of Flow-Induced Vibration for Cylinder-Plate Assembly at low Reynolds Number

The transverse flow-induced vibration (FIV) of an elastically-supported cylinder-plate assembly (viz., a rigid splitter-plate attached to the downstream side circular cylinder) with low mass ratio 10 and zero structural damping is investigated using numerical simulations at Reynolds number 100. oscillations characteristics flow around structure are analyzed in terms fluid forces as function plate length LSP reduced velocity Ur. These investigations involve wide range lengths LSP/D = 0–4 (where D cylinder diameter) over extensive span velocities Ur 2–30. For ? 0.5, self-limiting induced assembly—these correspond either vortex-induced (VIV) or integrated VIV-galloping response. ? 0.75, amplitude response no longer sense that oscillation increases linearly increasing Ur—these strongly correlated regime (for 0.75), two clearly separated regimes: namely, VIV small-amplitude non-limiting galloping > 0.75).