Experimental investigation of on-deck icing for marine vessels
Marine icing is a complex phenomenon and understanding its growth process is important to construct ice growth models that can be built with remote sensing unit as a mean of generating a more accurate ice chart that can help in the prediction and prevention of the ice accretion on the deck of the ve...
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Memorial University of Newfoundland
2017
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ftmemorialuniv:oai:research.library.mun.ca:12612 2023-10-01T03:54:11+02:00 Experimental investigation of on-deck icing for marine vessels Saha, Debashish 2017-05 application/pdf https://research.library.mun.ca/12612/ https://research.library.mun.ca/12612/1/thesis.pdf en eng Memorial University of Newfoundland https://research.library.mun.ca/12612/1/thesis.pdf Saha, Debashish <https://research.library.mun.ca/view/creator_az/Saha=3ADebashish=3A=3A.html> (2017) Experimental investigation of on-deck icing for marine vessels. Masters thesis, Memorial University of Newfoundland. thesis_license Thesis NonPeerReviewed 2017 ftmemorialuniv 2023-09-03T06:48:52Z Marine icing is a complex phenomenon and understanding its growth process is important to construct ice growth models that can be built with remote sensing unit as a mean of generating a more accurate ice chart that can help in the prediction and prevention of the ice accretion on the deck of the vessel/ rig. In an arctic environment, wave impact and splash can significantly affect ice accretion on a marine structure. To predict ice accretion, water sheet breakup behavior onto a surface needs to be studied closely. The freezing behavior of salt water mostly encountered in marine vessels and offshore structures is very complicated compared to fresh water due to the salt content. A comparative effort to analyze the difference and similarity between the differing ice accretion behaviors of salt and fresh water as well as to further examine water sheet splash are the motivation of experimental investigation performed in two separate lab scale test models. The setup preparation, measurement technique, and results are presented. The results show that in fresh water freezing, droplet cooling behavior, splash area and solidification time were mainly affected by the volume of the falling droplets. The presence of salt affects the cooling time as the falling droplet size is increased. The results from the water sheet breakup tests show that jet velocity significantly affects splash size upon breakup. It is also shown that high attack angles are beneficial in low-velocity impacts. Thesis Arctic Memorial University of Newfoundland: Research Repository Arctic |
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Marine icing is a complex phenomenon and understanding its growth process is important to construct ice growth models that can be built with remote sensing unit as a mean of generating a more accurate ice chart that can help in the prediction and prevention of the ice accretion on the deck of the vessel/ rig. In an arctic environment, wave impact and splash can significantly affect ice accretion on a marine structure. To predict ice accretion, water sheet breakup behavior onto a surface needs to be studied closely. The freezing behavior of salt water mostly encountered in marine vessels and offshore structures is very complicated compared to fresh water due to the salt content. A comparative effort to analyze the difference and similarity between the differing ice accretion behaviors of salt and fresh water as well as to further examine water sheet splash are the motivation of experimental investigation performed in two separate lab scale test models. The setup preparation, measurement technique, and results are presented. The results show that in fresh water freezing, droplet cooling behavior, splash area and solidification time were mainly affected by the volume of the falling droplets. The presence of salt affects the cooling time as the falling droplet size is increased. The results from the water sheet breakup tests show that jet velocity significantly affects splash size upon breakup. It is also shown that high attack angles are beneficial in low-velocity impacts. |
format |
Thesis |
author |
Saha, Debashish |
spellingShingle |
Saha, Debashish Experimental investigation of on-deck icing for marine vessels |
author_facet |
Saha, Debashish |
author_sort |
Saha, Debashish |
title |
Experimental investigation of on-deck icing for marine vessels |
title_short |
Experimental investigation of on-deck icing for marine vessels |
title_full |
Experimental investigation of on-deck icing for marine vessels |
title_fullStr |
Experimental investigation of on-deck icing for marine vessels |
title_full_unstemmed |
Experimental investigation of on-deck icing for marine vessels |
title_sort |
experimental investigation of on-deck icing for marine vessels |
publisher |
Memorial University of Newfoundland |
publishDate |
2017 |
url |
https://research.library.mun.ca/12612/ https://research.library.mun.ca/12612/1/thesis.pdf |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_relation |
https://research.library.mun.ca/12612/1/thesis.pdf Saha, Debashish <https://research.library.mun.ca/view/creator_az/Saha=3ADebashish=3A=3A.html> (2017) Experimental investigation of on-deck icing for marine vessels. Masters thesis, Memorial University of Newfoundland. |
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thesis_license |
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1778521573323440128 |