Open AccessShapes’ optimisation using numerical naval hydrodynamics of a Ro-Ro double ferry with electric propulsion to cross the Danube
Author(s) -
Nichita Sava,
Liviu Andrei Moise,
Daniela-Ioana Tudose,
Costel Iulian Mocanu,
Eugen Găvan
Publication year - 2021
Publication title -
analele universităţii "dunărea de jos" din galaţi. fascicula xi, construcţii navale
Language(s) - English
Resource type - Journals
eISSN - 2668-3156
pISSN - 1221-4620
DOI - 10.35219/annugalshipbuilding/2021.44.12
Subject(s) - propulsion , marine engineering , footprint , marine propulsion , hull , electrically powered spacecraft propulsion , fossil fuel , carbon footprint , environmental science , resistance (ecology) , aerospace engineering , engineering , oceanography , geology , ecology , greenhouse gas , biology , waste management , paleontology
One of the crucial problems of the 21st century is pollution. Regarding a low carbon footprint, thorough research efforts are being made to minimise fuel gas emissions. Ships, through the powers established for propulsion and the fossil fuels used, are some of the most toxic human inventions. Scientist in many European countries and beyond are developing studies either to reduce emissions from propulsion engines or to design body shapes of ships with low forward resistance and to find electric propulsion solutions. This paper carries out studies of naval hydrodynamics to find body shapes that generate the lowest resistance to advance. Thus, using hydrodynamic observations and with the help of the NUMECA calculation program, two different hulls are studied in order to establish the optimal shape with the lowest forward resistance. Furthermore, acknowledging the limited aquarium of the inland waters, an important aspect to approach is the size of the waves as well as their length. In order not to cause damage to existing shores and facilities, the waves produced by the floating body must have minimum heights and wavelengths.