Schematization of Hydrodynamic Forces Acting on Jack-up Legs and Morison Coefficients for Jack-up Legs

Schematization of Hydrodynamic Forces Acting on Jack-up Legs and Morison Coefficients for Jack-up Legs

Zeelenberg, L.

d'Angremond, K. (mentor)
Massie, W.W. (mentor)

Civil Engineering and Geosciences

Hydraulic Engineering

Offshore Engineering

1990-06-01

The first report is about: A jack-up rig is a mobile offshore platform. Basically, it is a self-elevating pontoon, which can be supported by retractable legs resting on the sea bed. Recently, it is proposed to use these platforms for production of marginal fields, what implies a longer term use. Furthermore, there are plans to use such platforms in deeper water. For design calculations and for checking whether the rig can be used on a new location, it is necessary to know the horizontal wave forces acting on the leg. Since the jack-up leg consists of many bars, direct wave force calculations are time consuming. Therefore, a schematization is required. The second report is about: The calculated and measured drag and inertia coefficients for a complete jack-up leg bay at high Reynolds numbers (0.5-1.2 * 10e).

Jack-up
Morison coefficients
hydrodynamic forces
Jack-up legs

http://resolver.tudelft.nl/uuid:9e12ea15-946a-44c8-ba14-84492b2f1162

Student theses

master thesis

(c) 1990 Zeelenberg, L.