A New Radial Spoiler for Suppressing Vortex-Induced Vibration of a Tubular Tower and Its Practical Design Method

Figure 18

Comparison of lift coefficient and PSD with and without spoilers for Example 2. (a) Time history of lift coefficient (bare). (b) Time history of lift coefficient (with spoilers). (c) PSD of the lift coefficient (bare). (d) PSD of the lift coefficient (with spoilers).

(a)

(b)

(c)

(d)