0.0
S5 10 15
-0.5
E
-1.0 -
> -2.0
01
Z -2.5-
-3.0
Cage Diameter (m)
Figure 5.12 Cage y-diameter net deflection for VF-500 tested at flow speed of 1 knot,
side-flow
5.5.2 Maximum Deflection Results
Two tables are shown to present deflection behavior with respect to the original
cage size. Data are summarized in table format because in each case, the maximum
deflections occur at different cage sizes which correspond to different drag loadings.
With different drag loadings, each case can not be directly compared to determine a
graphical trend. Tube diameter and working pressure are included in the tables for
comparison between cases. Table 5.2 shows the maximum diameter change and
maximum z-deflection with respect to original cage diameter for the top-flow case.
Diameter deflections are between 4-10%, while z-deflections are between 10-18%. Table
5.3 shows the maximum change in the x and y diameters with respect to original cage
diameter for the side-flow case. X-diameter deflections are small and between 2-4%,
while y-deflections are much larger, at 14-22%.