This paper presents an experimental and numerical investigation into the magnitude and distribution of the hydrodynamic loads affecting a fixed multicolumn offshore platform (rigidly mounted tension leg platform) when subjected to extreme wave events. All wave load components, including wave-in-deck slamming pressures, were predicted using a commercial computational fluid dynamics (CFD) code STAR-CCM+ and compared against experimental measurements. Slamming pressures were calculated using both data obtained locally at discrete points and globally averaged over the whole exposed area of the deck. In all simulated cases, the deck area exposed to a wave-slamming event was found to be in contact with a water–air mixture with a significant proportion of air phase. It was concluded that the slamming pressure data for the exposed area provided better insights into the pressure changes due to air compressibility and its content.

Item Type:	Refereed Article
Keywords:	extreme wave events, fixed multicolumn offshore platform
Research Division:	Engineering
Research Group:	Maritime engineering
Research Field:	Ocean engineering
Objective Division:	Transport
Objective Group:	Water transport
Objective Field:	Water safety
UTAS Author:	Abdussamie, N (Dr Nagi Abdussamie)
UTAS Author:	Ojeda, R (Dr Roberto Ojeda Rabanal)
UTAS Author:	Drobyshevski, Y (Professor Yuriy Drobyshevski)
UTAS Author:	Amin, W (Dr Walid Amin)
ID Code:	150726
Year Published:	2017
Web of Science® Times Cited:	2
Deposited By:	NC Maritime Engineering and Hydrodynamics
Deposited On:	2022-06-26
Last Modified:	2022-10-18
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