Wave run-up and second-order wave forces on a truncated circular cylinder due to monochromatic waves

• Main Authors: Mavrakos, SA, Chatjigeorgiou, IK, Lentziou, DM
• Format: Conference Object
• Language: unknown
• Published: 2005
• Subjects: Boundary conditions; Diffraction; Flow of fluids; Numerical methods; Pressure distribution; Problem solving; Double frequency diffraction potential; Free wave component; Gauss-Legendre numerical techniques; Truncated cylinders; Cylinders (shapes); Sturm; Arctic
• Online Access: http://dspace.lib.ntua.gr/handle/123456789/34971

The second-order diffraction potential around a truncated cylinder is considered. The solution method is based on a semi-analytical formulation for the double frequency diffraction potential. The later is properly decomposed into three components in order to satisfy all boundary conditions involved in the problem. The solution process results in a Sturm-Liouville problem for the ring-shaped outer fluid region, which is defined by the geometry of the structure. The matching of the potentials along the boundaries of neighborhood fluid regions is established with the aid of the 'free' wave component The calculation of integral of the pressure distribution on the free surface is carried out using an appropriate Gauss-Legendre numerical technique. The efficiency of the method described in the present is validated through comparative numerical results. Copyright © 2005 by ASME.