University Of Tasmania

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An experimental investigation of hydrodynamic impacts of marine growth on mid-water arch system

conference contribution
posted on 2023-05-23, 09:07 authored by Farmakis, M, Yuting Jin, Shuhong ChaiShuhong Chai, Morand, H, Izarn, C
Copyright © 2014 by ASME. The presence of marine growth modifies hydrodynamic effects to subsea structures and could lead to incorrect modelling if not properly accounted for. Widely-used design practice codes do not contain any specific guidelines or recommendations to account for the effects of marine fouling on complex subsea structures and due to the desired longevity of oil and gas constructs, considerable amounts of marine biofouling can accumulate. In the experimental investigation described in the paper, the impacts of different marine growth severities, current velocities and current directions on the hydrodynamic drag were carried out in the Flume Tank at the University of Tasmania. A 1:15 scale mid-water arch (MWA) was employed during this investigation. Several marine biofouling severities were tested as well as the structure without marine growth, representing scenarios based on realistic MWA operating conditions. Physical modelling was validated with numerical simulations using computational fluid dynamics. Experimental results gathered show a rise in drag forces when the artificial marine growth is attached. The highest force magnitudes were observed when the marine growth severity was at its maximum roughness. This has been complemented by numerical results, with input parameters coming from 3D scans of the artificial marine growth.


Publication title

ASME 2014 33rd International Conference on Ocean, Offshore and Arctic Engineering








Australian Maritime College


American Society of Maritime Engineers

Place of publication

United States

Event title

33rd International Conference on Ocean, Offshore and Arctic Engineering (OMAE 2014)

Event Venue

San Francisco, California

Date of Event (Start Date)


Date of Event (End Date)


Rights statement

Copyright 2014 ASME

Repository Status

  • Restricted

Socio-economic Objectives

Oil and gas extraction

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