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Investigation of ship waves in a narrow channel

Dam, Khanh Toan and Tanimoto, Katsutoshi and Fatimah, Eldina (2008) Investigation of ship waves in a narrow channel. Journal of Marine Science and Technology , 13 (3). 223 -230. ISSN 0948-4280

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Official URL: http://dx.doi.org/10.1007/s00773-008-0005-6


This paper presents a discussion of the characteristics of ship waves in a narrow channel restricted by vertical walls, based on observed data and the results computed by a 2-D model. In the numerical model, the propagation of waves generated by a moving ship is simulated by solving 2-D depth-integrated Boussinesq equations. To get the boundary conditions at the location of the ship, the slender-ship approximation is employed. A field observation was carried out at a straight length of navigation channel. The ships targeted in the observations are two kinds of waterbuses with lengths of 28 and 24 m. The relative depth Froude number for the river current, an appropriate parameter for assessing the influence of the current on ship wave characteristics in a navigation channel, ranged from 0.47 to 0.76. The observed maximum wave height varied between 0.13 and 1.26 m. The maximum wave height of the wave train is sharply increased when the relative depth Froude number exceeds 0.6. The results computed by the present model agree fairly well with the observed data.

Item Type:Article
Uncontrolled Keywords:field observation, maximum wave height, numerical simulation, relative depth froude number, river current, sailing distance
Subjects:Q Science > QC Physics
ID Code:12605
Deposited By: Liza Porijo
Deposited On:14 Jun 2011 05:21
Last Modified:14 Jun 2011 05:21

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