What is it about?
The importance of the sufficiently accurate prediction of the added resistance and powering of large ships in representative seaways is discussed in this paper. We introduce a new simple empirical formula that may be used by engineers for the fast estimation of the added resistance of ships in waves and present its validation for ships with LPP>250m. The importance of the accurate prediction of added resistance of large ships is demonstrated by numerical and experimental studies on real ships, of both full and fine hull forms. It is shown that for large ships sailing in representative seaways, properly quantifying the spectral contribution of the added resistance in the region of λ/LPP≈0.1~0.5 is of paramount importance and further studies are necessary to resolve this issue for large ships. This also leads to a critical discussion about the ITTC recommended experimental procedure assessing the seakeeping performance of large size ships.
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Why is it important?
to estimate the powering and fuel consumption of ships in realistic environmental conditions
Perspectives
this is a progress of our research work on the estimation of the added resistance in seaways by use of simple methods
Professor Apostolos Papanikolaou
National Technical University of Athens
Read the Original
This page is a summary of: On the prediction of the added resistance of large ships in representative seaways, Ships and Offshore Structures, July 2016, Taylor & Francis,
DOI: 10.1080/17445302.2016.1200452.
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