Figure 17:

The contours of pressure (top) and velocity magnitudes (bottom) for the damped structural instability of the enclosed fluid reservoir at times (a) $t=0.5\mathrm{s}$, (b) $t=1.2\mathrm{s}$, (c) $t=2.2\mathrm{s}$, (d) $t=2.4\mathrm{s}$, and (e) $t=2.6\mathrm{s}$.