http://www.cnr.it/ontology/cnr/individuo/prodotto/ID248266
Numerical and Experimental Investigation of Violent Seakeeping Phenomena (Contributo in atti di convegno)
- Type
- Label
- Numerical and Experimental Investigation of Violent Seakeeping Phenomena (Contributo in atti di convegno) (literal)
- Anno
- 2007-01-01T00:00:00+01:00 (literal)
- Alternative label
Greco M., Colicchio, G., Bazzi, T., Lugni, C. (2007)
Numerical and Experimental Investigation of Violent Seakeeping Phenomena
in International Conference on Violent Flows (VF-2007), Fukuoka, Japan, 20-22 novembre 2007
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Greco M., Colicchio, G., Bazzi, T., Lugni, C. (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
- Note
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- Titolo
- Numerical and Experimental Investigation of Violent Seakeeping Phenomena (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#isbn
- Abstract
- A 3D weakly non linear potential flow algorithm
in the time domain is developed to predict the wave-induced loads
on a ship in rough sea conditions.
Froude-Krylov and hydrostatic second-order terms are taken into account
for the global hydrodynamics.
Water-on-deck occurrence and flow on the deck are studied by coupling
the weakly non linear model for the external flow field with
a shallow-water model for the water shipped onto the deck.
Local and global induced green-water loads on the vessel are
predicted using an empirical formula for the deck pressure (Buchner 1995).
This includes both the hydrostatic contribution
accounting for the body accelerations and a dynamic pressure term
connected with the time derivatives of the water level along the deck
and of the ship motions.
All the elements of the resulting combined solver have been
verified and validated.
An ad hoc experimental campaign on a patrol ship model interacting
with a large amplitude wave system is on-going, concerning both
regular and irregular waves.
The tests are aimed to measure global motions of the vessel,
occurrence of water on deck, amount of shipped water,
green-water induced local loads on the deck and horizontal force caused
on a deck superstructure. The water-shipping events are also recorded
with a digital video camera. Preliminary results and comparisons
with the developed model are reported. (literal)
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