Second order diffraction forces on a vertical cylinder in regular waves

This paper extends the exact theory for second-orderwavediffraction by averticalcylinder in monochromatic waves to the case of bichromatic incident waves. On the basis of the usual assumption of an irrotational flow, the wave-diffraction problems at…

The main difficulty in second-order diffraction analysis stems from the contribution of the second-order potential, which obeys an inhomogeneous free-surface boundary condition. In some applications it is sufficient to know the second-order…

A three-dimensional fluid finite-element radiation/diffraction model is used to compute wave drift forces. Different formulations are compared. Results are shown for different bodies such as a sphere, a barge and a large tanker. (A)

Potential flow theory is used to investigate the wave induced harmonic response and the mean drift of an articulated column in regular waves. The mean drift horizontal force is evaluated by means of the Stokes expansion to second order in wave…

This paper presents laboratory measurements of local and total loading on an isolated vertical cylinder in irregular unidirectional and multidirectional waves. Maximum Keulegan-Carpenter numbers in individual waves were about 16, and maximum…

This paper analyses the results of two series of experiments concerned with the response of a single vertical cylinder in the inertia regime in steep non-breaking waves. We recorded first the loading on a cylinder when it was held stationary, and…

The second-order wave force is analysed for diffraction of monochromatic water waves by a vertical cylinder. The force is evaluated directly from pressure integration over the cylinder, and the second-order potential is derived by Weber…

A novel actuator signal achieved by changing the ratio of the suction duty cycle to the blowing duty cycle is adopted to enhance the control effect of the synthetic jet for the flow around a circular cylinder. The suction duty cycle factor k defined…

A complete second-order solution is presented for the hydrodynamic forces due to the action of monochromatic waves on an array of bottom-mounted, surface-piercing, vertical cylinders of arbitrary cross-section in water of uniform, finite depth.…

A series of experiments was carried out in an indoor wave basin in order to investigate characteristics of wave forces act- ing on a small-diameter vertical circular cylinder in a wave field comprised of two primary regular waves crossing at an…