Numerical modelling of bow thrusters at open quay structures

Introduction Bow thrusters are of great help for the navigation at quay walls, but the high and turbulent velocities can result in a bed load exceeding the strength of the bed or bed protection. To be able to design a stable bed the velocities at the bed need to be accurately determined. In design practise the velocities generated by a propeller...

Port Master Plan for the Port of Beira, Mozambique

The port of Beira is an essential driver for economic growth in Mozambique. Its location, with strong connections to the hinterland, creates a promising future for the further development of the port. The port authority requires a new port master plan in order to optimise throughput over available ground and (wet) infrastructure, and to extend...

Interaction between loaded barges and bed material

An explorative study to investigate flow velocities and sediment transport caused by the passage of a barge train over a small sandy shoal.

The behaviour of a moored oil tanker in the Port of Leixões, Portugal

The Port of Leixões is located in the north of Portugal. The operational conditions at berth “A” are affected by several factors resulting in a down-time of the berth of about 20%. In order to describe the behaviour of the moored vessel physical model tests were performed at the Faculty of Engineering University of Porto within the research and...

An analysis of vessel behaviour based on AIS data

From December 2004 onwards every seagoing vessel over 300 Gross Tonnage (GT) is obliged to be equiped with an Automatic Identification System (AIS). Vessels equipped with this system, send out a message every few seconds, containing their position, speed, course, identification number, etc. This makes it possible to perform a statistical...