Determining Propeller Erosion at the Stern of a Berthing Ship
Publication: Journal of Waterway, Port, Coastal, and Ocean Engineering
Volume 139, Issue 4
Abstract
This paper presents the findings from an experimental investigation into the nature and extent of the scouring that occurs when a ship berths in front of a perpendicular quay wall within the confines of a harbor. It examines the interaction between the relative position of the quay wall to the central axis of the ship and the influence of the angle of the vessel’s rudder on the magnitude of the scouring produced. The experimental program covered a range of sediment sizes, propeller diameters and speeds of rotation, and rudder angles. Also, methods for calculating the depth of expected scour are presented in terms of initial semiempirical equations for the data range under investigation.
Get full access to this article
View all available purchase options and get full access to this article.
References
Bergh, H., and Cederwall, K. (1981). “Propeller erosion in harbours.” Bulletin No. TRITA-VBI-107, Hydraulics Laboratory, Royal Institute of Technology, Stockholm, Sweden.
Bergh, H., and Magnusson, N. (1987). “Propeller erosion and protection methods used in ferry terminals in the port of Stockholm.” J. Permanent Int. Association of Navigation Congress, 58, 112–120.
Blaauw, H. G., and Van De Kaa, E. J. (1978). “Erosion of bottom and sloping banks caused by the screw of manoeuvring ships.” Publ. No. 202, Delft Hydraulic Lab, Delft, Netherlands.
British Ship Research Association. (1984). “Hydrodynamics.” Chapter 7, Ship design manual, British Ship Research Association, Wallsend, U.K.
Chait, S. (1987). “Undermining of quay walls at South African ports due to the use of bow thrusters and other propeller units.” J. Permanent Int. Association of Navigation Congress, 58, 107–110.
Hamill, G. A. (1988). “The scouring action of the propeller jet produced by a slowly manoeuvring ship.” J. Permanent Int. Association of Navigation Congress, 61, 85–110.
Hamill, G. A., Hughes, D. A. B., and McGarvey, J. A. (2001). “The effect of rudder angle on the scouring action produced by the propeller wash of a manoeuvring ship.” J. Permanent Int. Association of Navigation Congress, 106, 49–62.
Hamill, G. A., McGarvey, J. A., and Hughes, D. A. B. (2004). “Determination of the efflux velocity from a ship’s propeller.” J. Marit. Eng., 157(2), 83–91.
Hashmi, H. N. (1993). “Erosion of a grandular bed at a quay wall by a ship's screw wash.” Ph.D. thesis, Queen's Univ. of Belfast, Belfast, U.K.
Stewart, D. P., Hamill, G. A., and Johnston, H. T. (1991). “Bed scour considerations in ship berth design.” Proc., Int. Conf. on Coastal and Port Engineering in Developing Countries, Mombassa, Kenya, 1110–1125.
Verhey, H. J., Blockland, T., Bogaerts, M. P., Volger, D., and Weyde, R. W. (1987). “Experiences in Netherlands with quay structures subjected to velocities created by bow thrusters and main propellers of mooring and unmooring ships.” J. Permanent Int. Association of Navigation Congress, 58, 69–88.
Information & Authors
Information
Published In
Journal of Waterway, Port, Coastal, and Ocean Engineering
Volume 139 • Issue 4 • July 2013
Pages: 247 - 255
Copyright
© 2013 American Society of Civil Engineers.
History
Received: Jun 7, 2010
Accepted: Mar 7, 2012
Published online: Mar 10, 2012
Published in print: Jul 1, 2013
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.