Searched for: subject%3A%22shallow%255C%252Bwater%22
(1 - 7 of 7)
document
Zeng, Q. (author), Hekkenberg, R.G. (author), Thill, C.H. (author), Hopman, J.J. (author)
The conventional extrapolation of ship resistance from model tests to full scale presumes that the coefficient of wave-making resistance (C<sub>w</sub>) depends on the Froude number only. This leads to the assumption that C<sub>w</sub> of a ship is identical to C<sub>w</sub> of its scaled model. However, this assumption is challenged in...
journal article 2020
document
Zeng, Q. (author), Hekkenberg, R.G. (author), Thill, C.H. (author)
Accurate resistance prediction for ships sailing in vertically restricted waterways is highly required to improve the design and operation for large ships entering harbors and for vessels navigating in inland waters. The methods derived from deep water may lead to large errors, and studies considering shallow water effects are needed. As most...
journal article 2019
document
Zeng, Q. (author), Thill, C.H. (author), Hekkenberg, R.G. (author), Rotteveel, E. (author)
The ITTC57 correlation line, which is derived based on the assumption that the water in which ships advance is infinite deep and wide. However, for ships sailing in the waterway with limited water depth, the frictional resistance will be influenced leading to a decreasing accuracy of the prediction with this correlation line. In this study, a...
journal article 2018
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Rotteveel, E. (author), van der Ploeg, A (author), Hekkenberg, R.G. (author)
Shallow water effects change the flow around a ship significantly which can affect the optimum design of the hull. This paper describes a study into the optimization of the aft ship region for various water depths. The research focuses on variations of the following parameters of a hull form: The athwart ship’s propeller location, the tunnel top...
conference paper 2016
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Liu, J. (author), Hekkenberg, R.G. (author)
An accurate estimation of the rudder forces and moments is essential for manoeuvrability prediction. Previous research has shown that ships have different manoeuvring performance in deep and shallow water. Before considering the rudder’s contribution to shallow water manoeuvring, it is meaningful to analyse the shallow water effects on the...
conference paper 2016
document
Rotteveel, E. (author), Hekkenberg, R.G. (author)
Effects of a hull form variation and shallow water on a 110-meter inland ship are presented as preliminary results of the Top Ships project, which is initiated in order to improve inland ship design tools and design guidelines.
conference paper 2015
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Rotteveel, E. (author), Hekkenberg, R.G. (author), Liu, J. (author)
For inland ships, state-of-the-art hull form design is to a large extent based on experience, common sense, or adjusting previous designs. The idea therefore arises that further optimization is possible if the right knowledge is available. This knowledge is insufficiently available due to two main reasons. First, research into inland ship...
conference paper 2014
Searched for: subject%3A%22shallow%255C%252Bwater%22
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