Page 338 - Fluid-Structure Interactions Slender Structure and Axial Flow (Volume 1)
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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).
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