merged

Study of Scouring Effect from Different Angle on Complete Removal of
Offshore Platform
Muhamad Asraf Bin Yenniwal
Supervisor: Dr. Mohd Asamudin Bin A. Rahman
Bachelor of Applied Science (Maritime Technology)
School of Ocean Engineering
Universiti Malaysia Terengganu
Offshore platform in Malaysia will undergo decommissioning process and Rig to Reef
program has been introduced as one of method to reduce transportation cost. A
number of platform will be remove completely before being placed to suitable spots
for artificial reef. After the platform reach the seabed, we have to study the scouring
effect of the structures. Scour is actually removal of particles or material from sea bed
due to turbulence, flow acceleration and erosive action of moving water. Using
Computational Fluid Dynamics in Flow 3D software, the simulation is been done to
understand the data for scour depth, flow velocity, fluid depth and packed sediment
height changes in net sediment motion when different heading angle of flow of sea
water to the jacket structure is been implemented. The heading angle that will be
used are 15º, 30º, 45º and 90º in constant flow rates for a specific time.
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