Fluid-Structure Interaction in a 3-by-3 Reduced-Scale Fuel Assembly Network

Figure 8

Square root of the autospectral density of $f_{\text{aligned}}$ versus frequency (a); square root of the autospectral density of $u_{\text{central}}$ versus frequency (b); coherence between $f_{\text{aligned}}$ and $u_{\text{central}}$ versus frequency (c); for a 4.2 m/s fluid velocity.

(a)

(b)

(c)