Ship and Offshore Hydrodynamics

At the end of this course, the students should be able to: 1. estimate the environmental loads on fixed and floating offshore platforms; 2. model the dynamics of floating and fixed offshore structures under different metocean conditions; 3. perform statistical description of random seas and the induced structural responses; and 4. explain fluid flow phenomena such as flow separation, vortex shedding, vortex induced vibration (VIV).

Prediction of environmental loads on fixed and floating offshore platforms. Shallow- and deep- water wave theories. Dynamic responses analysis and experimental techniques. Dynamic modelling of offshore floating structures in waves. Fluid loading on slender offshore structures. Froude Krylov forces. Simplified diffraction forces. Introduction to the Morison equation – fluid phenomenon and force coefficients, variations on the basic formula and fluid loading calculations. Statistical description of random seas. Two-dimensional and three-dimensional wave spectra. Statistical description of response to environmental loading. Downtime analysis. Fluid load on slender bodies such as structural elements of fixed platforms and pipelines. Modelling of ships and offshore structures in incompressible viscid/inviscid flow. Fluid flow phenomena such as flow separation, vortex shedding, vortex induced vibration (VIV), etc. The concepts of added mass and wave diffraction by large volume structures- McCamy and Fuchs solution.