NAV 2022

Session

1B

15 Jun 2022, 11:00

22. Hydrodynamic Assessment of Double-Ended Ferry for Operation in Venice

Mr Victor Ferrari (MARIN)

15/06/2022, 11:00

Stability, Seakeeping, Maneuverability

Paper

The hydrodynamic assessment of double-ended ferries is always particularly challenging, not only due to their peculiar hull shape, but also because of the environment where they have to operate and its related constraints. The present paper discusses a practical case study of such hydrodynamic assessment for a double-ended ferry planned to operate in the Venice lagoon. The main objective of...

27. Numerical CFD Prediction of the Asymmetrical Shaft Unbalance During Ship Maneuvers

Diego Villa (Univerisity of Genova)

15/06/2022, 11:20

Stability, Seakeeping, Maneuverability

Paper

As it is well known, during ship manoeuvres the propellers experience strong inflow variations. These can be ascribed to two main aspects. The first relates to the ship average speed reduction during the maneuverer itself, particularly evident for high rudder angles (as for turning circles cases). The second reason is the generated ship wakes, which become strongly asymmetrical due to the...

43. On the development of a ship simulation model for maneuvering tasks in waves

Prof. Maria Acanfora (University of Naples “Federico II”, Italy)

15/06/2022, 11:40

Stability, Seakeeping, Maneuverability

Paper

The possibility of simulating the interaction of hull, propeller, and engine is gathering the interest of several researches in view of a more realistic design and control of the whole propulsion chain. The engine performance in rough seas is affected by the dynamics of the hull and consequently by the complex flow regime at the propeller, which induces fluctuating engine torques and...

45. Weather Routing Model for Ship Motions Reduction and Fuel Saving

Dr Silvia Pennino (University of Naples “Parthenope”)

15/06/2022, 12:00

Stability, Seakeeping, Maneuverability

Paper

When a vessel sails in a seaway, wind and current can influence the ship’s speed, the comfort on board and the fuel consumption. Maritime trades are strictly dependent on the environmental conditions that the ships encounter during their sailing, safe navigation and energy efficiency are the key factors to improve the competitiveness and sustainability of ship operations. Optimization...

64. Alternative assessment of passenger ship safety – Early results from the EU project FLARE

Mr Alessandro Maccari (RINA Services SpA)

15/06/2022, 12:20

Stability, Seakeeping, Maneuverability

Paper

Mitigating flooding risk through passive and active measures is a key step in further increasing the safety of shipping, reducing loss of life and damage to the environment. Accurate modelling of flooding is of paramount importance, considering that this hazard remains the most significant contribution to the overall risk (up to 90% of the risk in passenger ships). Real time estimation of...