merged

Computational Fluid Analysis on Vertical Motions of Semi-Submersible
Wan Izzati Arfah Binti Wan Irfan
Supervisor: Assoc. Prof. Ir. Dr. Ahmad Fitriadhy
Bachelor of Applied Science (Maritime Technology)
School of Ocean Engineering
Universiti Malaysia Terengganu
The semi-submersible may experience an excessive vertical motions, heave and pitch
motions, in extreme sea condition, which is unsafe for drilling operations. This project
proposes to install a heave plate aimed at reducing those vertical motions that is
analyzed by using Computational Fluid Dynamics (CFD) approach. Several parameters
of the heave plates such as various cross sectional areas and different depth positions
with respect to semi-submersible center of gravity incorporated with mooring lines
model have been taken into account. The results shows that an increase in the cross
sectional area, depth between the plate and hull and also increasing the mooring
tension will reduce the heaving and pitching motions of the semi-submersible. As a
conclusion, by alternating these values will give better performance towards the
operation of semi-submersible platform.
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