Page 337 - Fluid-Structure Interactions Slender Structure and Axial Flow (Volume 1)

Positive

U
J- Q2
800

Negative
Infinite
stiffness
\

29 26 \23 20 -0 O\"

U

-lo I 10

Figure 5.11 (a) The 'black box' containing Thompson's constrained articulated pipe system; (b) the experimental data showing the flexibility (inverse
of stiffness) versus the square of the volumetric flow-rate, Q2, where Q = MU/p, p being the fluid density (Thompson 1982b).