WHAT COULD HAPPEN IF THE PARBUCKLING OF COSTA CONCORDIA HAD FAILED: ANALYTICAL AND CFD-BASED INVESTIGATION OF POSSIBLE GENERATED WAVE

Alberto Lamberti, Alessandro Antonini, Giovanni Ceccarelli

Abstract


Costa Concordia is well known throughout the world as the ship which partially sank after a collision with rocks near to Giglio Island. The successful parbuckling operation has received wide coverage from the media. The estimated presence of hundreds of persons, journalists and tourists near the location of the partially sank ship during the recovery operations required an estimation of which wave could be generated if any malfunctioning might occur and the vessel might fall down into the water with its huge mass. Due to the short time between the analysis require and parbuckling start-up, a quick estimation of the possible generated wave was carried out. The present contribution aims to verify the accuracy of the estimation by comparison with a state of the art numerical simulation. A CFD simulation of the vessel partially emerged falling into the water has been done. Different configurations of the wreck positions at failure and different failure modes are investigated in order to identify the worst scenario.

Keywords


Costa Concordia; parbuckling; motion equation; CFD; STAR-CCM+

Full Text:

PDF

References


The Guardian. 18 May 2012. Costa Concordia salvage team prepares for “largest refloat in history”. The Guardian. Accessed 11 Sept. 2014.

Ceccarelli, G. 2013. Rimozione del relitto della Concordia : il progetto ingegneristico e la realizzazione del raddrizzamento, Studi di Aggiornamento sull'Ingegneria Off-Shore e Marina AIOM 2013.

D'Appolonia, 2012. Removal operations of Costa Concordia wreck near Giglio island (Grosseto): analysis of the impulsive wave propagation generated by wreck sliding. Internal report, Doc.No. 12-343-H11. (in Italian)

OVERDICK. 2012. Costa Concordia wreck removal: hydrostatic assessment of parbuckling. Internal document, Doc.No. TMCC-OV-REP-40-003-08.

CD-ADAPCO, Star-CCM+ 8.04 User Manual, CD-ADAPCO, 2013.

Yu, Y.H. and Li, Y. A RANS simulation of the heave response of a two-body floating-point wave absorber, Proceedings of the 21st International Offshore and Polar Engineering Conference, (ISOPE 2011).

Yu, Y.H. and Li, Y. 2013. Reynolds-Averaged Navier-Stokes simulation of the heave performance of a two-body floating-point absorber wave energy system, Computer & Fluid,73 ,104 -114.

Choi, L, and Yoon, S.B. 2009. Numerical simulations using momentum source wave-maker applied to RANS equation model, Coastal Engineering, 56, 1043-1060.

Zelt, J. and Skjelbreia, E. 1992. Estimating incident and reflected wave fields using an arbitrary number of wave gauges. Proceedings of 23rd International Conference on Coastal Engineering.




DOI: https://doi.org/10.9753/icce.v34.waves.55