IAHR, founded in 1935, is a worldwide independent member-based organisation of engineers and water specialists working in fields related to the hydro-environmental sciences and their practical application. Activities range from river and maritime hydraulics to water resources development and eco-hydraulics, through to ice engineering, hydroinformatics, and hydraulic machinery.
Log On
About IAHRDirectoryCommitteesMy IAHRNews & JournalseLibraryeShopEventsJoin IAHRWorld CongressDonate
spacer.gif
spacer.gif eLibrary
spacer.gif eLibrary
You are here : eLibrary : IAHR World Congress Proceedings : 36th Congress - The Hague (2015) ALL CONTENT : Water engineering : An experimental study of the effects of finite water depth and lateralconfinement on ships wake and ...
An experimental study of the effects of finite water depth and lateralconfinement on ships wake and drag
Author : CLEMENT CAPLIER(1), GERMAIN ROUSSEAUX(1), DAMIEN CALLUAUD(1) & LAURENT DAVID(1)
ABSTRACT
Wash waves produced by ships disintegrate river banks and coastal lines. This phenomenon of bank erosion is mainly
due to the height of the waves. To understand the influence of the geometry of the water channel, the shape of the boat
and its speed on the formation and the amplitude of wash waves, the analysis of the ships wakes in the waterway is
essential. This study proposes a comparison of wakes generated by two hulls representative of maritime and river ships.
The wakes generated in deep water and shallow water configurations have been measured for different Froude numbers
with a non-intrusive optical stereo correlation method, giving access to a detailed and complete definition of the
generated wave fields. The results permit to study the influence of both hull and water channel geometries on the ship's
wake shape, on the amplitude of the generated waves and on the hydrodynamic response around the hull. The drag of
the hulls has also been measured in deep and shallow water configurations with a hydrodynamic balance to highlight the
effect of both hull and water channel geometries on the ship resistance.
File Size : 851,398 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 36th Congress - The Hague (2015) ALL CONTENT
Article : Water engineering
Date Published : 20/08/2015
Download Now