Marine spray from wave run-up to a hull as input to icing models

Albert B. Aalbers, Jeroen S. Hoving

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

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Abstract

Ships at sea will encounter deck wetness events that usually are just annoying and rarely lead to damage. Discomfort is experienced by spray, as it is limiting view and hampering deck work. In freezing conditions, deck wetting will lead to icing. This study is a continuation of publications regarding the development of a marine icing model based on spray predictions, taking into account ship shape and the physics of wave run-up leading to spray jets. The modelling of jet development from wave run-up against a wall, representing a ship hull, is investigated by experiments and mathematical modelling using nonlinear wave theory. Run-up jets occur frequently for ships at sea and are responsible for most of the generated spray. Detailed measurements of the run-up jet were obtained from high-speed video registration yielding information on the droplet distribution. The measurements indicate that the thickness of the run-up jet above the wall determines the maximum droplet size, and that this size is significantly larger than generally assumed in icing models. Based on these insights, new computations are performed with the ‘SHIPICE’ marine icing model to demonstrate the applicability and accuracy of the approach.

Original languageEnglish
Title of host publicationPOAC 2019 - 25th International Conference on Port and Ocean Engineering under Arctic Conditions
Subtitle of host publicationJune 9-13, 2019
Place of PublicationDelft, the Netherlands
Number of pages13
ISBN (Electronic)9780000000002
Publication statusPublished - 2019
Event25th International Conference on Port and Ocean Engineering under Arctic Conditions, POAC 2019 - Delft, Netherlands
Duration: 9 Jun 201913 Jun 2019

Conference

Conference25th International Conference on Port and Ocean Engineering under Arctic Conditions, POAC 2019
CountryNetherlands
CityDelft
Period9/06/1913/06/19

Keywords

  • Computational Modelling
  • Experiments
  • Icing
  • Spray jets
  • Wave run-up

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