Hydrodynamic Forces On Groups Of Cylinders

High Reynolds Number Oscillating Flow by Cylinders

“…The authors have derived a closed form analytical solution for the hydrodynamic forces on any number of cylinders which may move in any manner as shown in Ref. (7). Several practical examples were solved (9,10,11).…”

“…For the potential flow situation, such as earthquake problems, a closed form solution for the hydrodynamic forces on any number of cylinders is available in Ref. 7. The calculated force coefficients for one, two and three cylinders near a plane boundary (11) and for a 4x4 cylinder arrays (10) are also available.…”

“…The influence of a plane boundary was first treated analytically in (8,9). The theory has been extended to a group of cylinders (7) and applied to various types of engineering problems (10,11).…”

“…Experimental verification of the theory was made for the simple case of a cylinder near a plane boundary (3,4,7,8,11). An excellent agreement between theory and experiment was obtained for the case when wake formation is small (A/D<1.5 where A = the double amplitude of water particle displacement relative to the cylinder, and D = cylinder diameter).…”

Full Scale Near Surface Water Particle Velocities and Pressures Acting on an Inclined Tubular Member

“…KIM and HIBBARD (1975) measured the local water particle velocities in a full scale experiment and similar measurements are being carried out at present in the Christchurch Bay Tower experiment, see for instance PEARCY and BISHOP (1979) and HOLMES and TICKELL (1979). High enough REYNOLDS's numbers in the laboratory experiments to be applicable to prototype were only obtained by applying special model techniques for instance SARPKAYA (1976), HOGBEN (1976), YAMAMOTO and NATH (1976).…”