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The effect of air content and compressibility on wave-in-deck impact pressures


Abdussamie, N and Drobyshevski, Y and Ojeda, R and Thomas, G and Amin, W, The effect of air content and compressibility on wave-in-deck impact pressures, Proceedings of the 20th Australasian Fluid Mechanics Conference (20AFMC), 5-8 December 2016, Perth, Australia, pp. 1-4. (2016) [Refereed Conference Paper]

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Numerical simulations of an extreme wave impact on a topside deck structure were conducted to ascertain the effect of air content and its compressibility on the magnitude of the wave-indeck impact (slam) pressure. The topside deck was investigated as both a fixed structure and as a topside structure of a typical Tension Leg Platform (TLP) exposed to unidirectional regular waves. The volume of fluid model implemented in STAR-CCM+ was used to capture the free surface interface. CFD results were validated using different levels of mesh resolution against 1:125 model-scale experiments. In all simulated cases, the deck area exposed to a wave slam event was found to be in contact with a water-air mixture with a significant proportion of air, which revealed that two-phase models are necessary to accurately simulate wave-in-deck problems.

Item Details

Item Type:Refereed Conference Paper
Keywords:air compressibility, wave in deck
Research Division:Engineering
Research Group:Maritime engineering
Research Field:Ocean engineering
Objective Division:Energy
Objective Group:Energy exploration
Objective Field:Oil and gas exploration
UTAS Author:Abdussamie, N (Dr Nagi Abdussamie)
UTAS Author:Drobyshevski, Y (Professor Yuriy Drobyshevski)
UTAS Author:Ojeda, R (Dr Roberto Ojeda Rabanal)
UTAS Author:Amin, W (Dr Walid Amin)
ID Code:114040
Year Published:2016
Deposited By:NC Maritime Engineering and Hydrodynamics
Deposited On:2017-02-02
Last Modified:2018-05-23

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