The severe ecological and economical aftermath of the 2010 ‘Deepwater Horizon’ catastrophe in the Gulf of Mexico clearly shows the insufficiency of current oil recovery systems which cannot operate in wave heights above 1.5 m. To prevent emulsification and weathering processes, it is necessary to skim the oil film off the sea surface shortly after the accident. The autonomous SOS (Sea State-independent Oil Skimming System) developed within the framework of the research project SOS3 features high transit velocities, the capability of operating in rough seas and a massive intake of oil polluted water — and is therefore a unique technology. Numerical analyses of realistic oil skimming operations require three-dimensional transient three-phase flow simulations in order to take into account wave-induced ship motions. Due to the computational effort, a simplified approach is chosen for systematic investigations. Model tests at a scale of 1:25 are conducted in two different irregular sea states. In order to represent oil cleanup operations as realistically as possible, towing tests at constant velocities are replaced by a series of experiments with a free-running model. A self powered tug pushes the oil skimming barge and experiences interactions with waves, influencing the velocity and therefore the skimming performance of the SOS. Data from optical motion measurements of the barge is then used as input for two-dimensional CFD simulations. The numerical analyses are focusing on the oil-water-separation process of the realistically moving coupled system in different irregular sea states.
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ASME 2012 31st International Conference on Ocean, Offshore and Arctic Engineering
July 1–6, 2012
Rio de Janeiro, Brazil
Conference Sponsors:
- Ocean, Offshore and Arctic Engineering Division
ISBN:
978-0-7918-4492-2
PROCEEDINGS PAPER
A Hybrid Analysis Method for Investigating Oil Cleanup Operations at Sea
Günther F. Clauss,
Günther F. Clauss
Technical University of Berlin, Berlin, Germany
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Sascha Kosleck,
Sascha Kosleck
Technical University of Berlin, Berlin, Germany
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Florian Sprenger,
Florian Sprenger
Technical University of Berlin, Berlin, Germany
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Sven Stuppe
Sven Stuppe
Technical University of Berlin, Berlin, Germany
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Günther F. Clauss
Technical University of Berlin, Berlin, Germany
Sascha Kosleck
Technical University of Berlin, Berlin, Germany
Florian Sprenger
Technical University of Berlin, Berlin, Germany
Sven Stuppe
Technical University of Berlin, Berlin, Germany
Paper No:
OMAE2012-83014, pp. 453-461; 9 pages
Published Online:
August 23, 2013
Citation
Clauss, GF, Kosleck, S, Sprenger, F, & Stuppe, S. "A Hybrid Analysis Method for Investigating Oil Cleanup Operations at Sea." Proceedings of the ASME 2012 31st International Conference on Ocean, Offshore and Arctic Engineering. Volume 5: Ocean Engineering; CFD and VIV. Rio de Janeiro, Brazil. July 1–6, 2012. pp. 453-461. ASME. https://doi.org/10.1115/OMAE2012-83014
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