Hydrodynamic study of submerged ice collisions

DOIResolve DOI: http://doi.org/10.1115/OMAE2015-42079
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Proceedings titleProceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE
ConferenceASME 2015 34th International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2015, 31 May 2015 through 5 June 2015
Article numberOMAE201542079
SubjectArctic engineering; Engineering research; High speed cameras; Kinematics; Numerical models; Ocean engineering; Offshore structures; Surface waters; Added mass; Function of time; Hydrodynamic studies; Ice blocks; Ice-structure interaction; Impact collision; Physical experiments; Sea surfaces; Ice
AbstractMost of the research done on ice-structure interaction deals with the ice at the sea surface. Whereas majority of icestrengthened regions of ships and offshore structures are well below the waterline. The aim of this research is to examine the mechanics of ice loads caused by submerged ice blocks colliding with the structure. The kinematics is an essential determinant of the energy that is available to drive the ice crushing process during the collision. The present research aims to develop a model to represent the mechanics of such collisions and set a direction for future work. This study includes experimental and numerical components. Various physical experiments have been conducted using a submerged ice model moving solely due to its buoyancy. Using high speed camera the experiments are recorded and analysed to determine the kinematics of collision. These include location, velocity and acceleration of the model ice as a function of time. In parallel, numerical simulations have being conducted using FLOW 3DTM software. The results of the experiments are used to validate the numerical model of the underwater collision. The results shows that added mass plays an important role during the underwater impact collisions. The paper presents some preliminary results obtained during this research.
Publication date
PublisherAmerican Society of Mechanical Engineers
AffiliationNational Research Council Canada (NRC-CNRC); Ocean, Coastal and River Engineering
Peer reviewedYes
NPARC number21277342
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Record identifierb1fc9645-bfb9-4f06-94d9-dac32742d740
Record created2016-03-09
Record modified2016-05-09
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