Open AccessComputational and experimental works on ship resistance
Author(s) -
Wolter R Hetharia,
Eliza R. De Fretes,
Fella Gaspersz
Publication year - 2019
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/339/1/012036
Subject(s) - towing , propulsion , marine engineering , computation , process (computing) , engineering , engine power , naval architecture , power (physics) , displacement (psychology) , computer science , aerospace engineering , algorithm , psychology , physics , quantum mechanics , psychotherapist , operating system
Ship engine power is estimated at initial design process to satisfy the required speed. This ship parameter is determined by computation of ship resistance and propulsion parameter from any existing methods or executing ship model test. In fact, the results of ship model tests do not satisfy those of the existing methods. However, for initial design approach this may be used to estimate the engine power. This approach is used in design process for many ships but some methods are not suitable for certain type of ships. Three type of ships were developed and evaluated to prove this issue. They were fishing ship, passenger-cargo coaster and semi-displacement ship. The resistance and propulsion parameters of those ships were determined by the existing methods. Three models of those ships were tested in the towing tank to validate the results of the resistance from existing methods. The results of computation and model test were presented and analyzed. It was found that there were difference between the results of computations and those from model tests for three ships. Some recommendations were stated at this paper concerning the application of the results for such ships.