NAV 2018

Session

Weather Routing and Environment Modeling

22 Jun 2018, 09:00

Trieste (Italy)

45. “Climate changes and maritime transportation: a state of the art”

Prof. Enrico Rizzuto (University of Naples)

22/06/2018, 09:00

Environment protection, electric system and ship energy efficiency

Paper

In the next years, the worldwide fleet will be called to adopt drastic measures to reduce the emissions of pollutants. In order to comply with the Paris Agreement and keep the average increase in the earth’s temperature below 2OC, emissions will have to drop significantly from 2020 onwards. At the end of 2018, the UNFCC expects the IMO to communicate its intentions regarding the Paris...

69. Optimal navigation with ocean currents: the VISIR ship routing model

Dr Gianandrea Mannarini (CMCC)

22/06/2018, 09:15

Ship digitalization, unmanned vehicle and cyber security

Paper

A new development of the VISIR ship routing model ([Mannarini et al, Geosci. Model Dev., 9(4):1597-1625, 2016][1]) is here presented. The first version of the model has powered an operational service in the Mediterranean Sea (www.visir-nav.com) for about 3 years. Its source-code is distributed with an open policy ([www.visir-model.net][2]). The new developments target large ocean-going...

131. Kotor Bay area hydrodynamics and pollutant dispersion simulations: a tool for contingency plans

Dr Federico Roman (iefluids s.r.l.)

22/06/2018, 09:30

Numerical & experimental hydrodynamics

Paper

Harbor and coastal areas, according to ITOPF statistics, are frequent scenarios of small oil spill accidents, usually caused by oil tanker collision in maneuvering or during oil download. For sake of marine environment and human activities, contingency plans are required to minimise the damages of oil spills. In this regard numerical simulations are a useful tool to explore both the worst or...

159. Preliminary assessment of route optimisation for fuel minimisation and safety of navigation by the use of cooperatively collected data at sea

Dr Andrea Orlandi (Researcher at Consorzio LaMMA)

22/06/2018, 09:45

Numerical & experimental hydrodynamics

Paper

The growing pressure of the international regulations on GHG emissions from ships is pushing towards the adoption of a variety of operational energy efficiency measures. The fusion of measurement techniques, smart telecommunication technologies and numerical modelling approaches has a great potential for the implementation of services for the shipping industry. Among these, there are weather...

142. Air quality simulations and forecasting of along-route ship emissions in realistic meteo-marine scenarios

Dr Andrea Orlandi (Consorzio LaMMA, Florence,Italy)

22/06/2018, 10:00

Environment protection, electric system and ship energy efficiency

Paper

In the present study, scenario simulations are performed by integrating ship performances prediction models with meteo-marine forecasting and pollutants emissions transport models. By considering the detailed simulation of seakeeping and powering performances of a ship along predefined routes, in different realistic meteo-marine conditions, the concentration of the emitted pollutants and...

139. Numerical simulation of hot smoke plumes from funnels

Dr Federico Roman (iefluids s.r.l.)

22/06/2018, 10:15

Numerical & experimental hydrodynamics

Paper

The flow around ship over-structures is characterized by both separation phenomena with recirculation regions at high Reynolds number, and the fast ejection of hot smokes from funnels. These two features are of the utmost importance for two linked goals in the ship design, namely the aerodynamic drag reduction and the preservations of passengers’ comfort. In particular, the latter depends on...