Preliminary wind tunnel investigation of the influence of propeller loading on a ship rudder in the bollard (J=0) condition


Molland, A.F. and Turnock, S.R. (1993) Preliminary wind tunnel investigation of the influence of propeller loading on a ship rudder in the bollard (J=0) condition. Southampton, UK, University of Southampton, 39pp. (Ship Science Reports, (49) ).

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Description/Abstract

Performance tests were carried out on a semi-balanced skeg and an all-movable rudder model downstream of a propeller. The tests were carried out in a closed return wind tunnel with the wind tunnel fan stationary. The tests were not true zero speed as the model ship propeller circulated the air within the tunnel at a slow but measurable speed. This speed corresponded to a propeller advance ratio J of 0.17 and thrust loading K subscript T / J superscript 2 of 12. Performance comparisons were made for several propeller rates of revolution. Surface pressure measurements were made at 200 locations distributed over the all-movable rudder. Measurements were made for seven rudder angles between -30° and +30° at two rates of revolution of 800 and 1460 rpm.

Item Type: Monograph (Technical Report)
Additional Information: ISSN 0140-3818
Subjects: V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering
Divisions: University Structure - Pre August 2011 > School of Engineering Sciences
ePrint ID: 44116
Date Deposited: 20 Feb 2007
Last Modified: 27 Mar 2014 18:28
Publisher: University of Southampton
URI: http://eprints.soton.ac.uk/id/eprint/44116

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