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

Preliminary wind tunnel investigation of the influence of propeller loading on a ship rudder in the bollard (J=0) condition
Preliminary wind tunnel investigation of the influence of propeller loading on a ship rudder in the bollard (J=0) condition
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.
49
University of Southampton
Molland, A.F.
917272d0-ada8-4b1b-8191-1611875ef9ca
Turnock, S.R.
d6442f5c-d9af-4fdb-8406-7c79a92b26ce
Molland, A.F.
917272d0-ada8-4b1b-8191-1611875ef9ca
Turnock, S.R.
d6442f5c-d9af-4fdb-8406-7c79a92b26ce

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 (Ship Science Reports, 49) Southampton, UK. University of Southampton 39pp.

Record type: Monograph (Project Report)

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.

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Published date: 1993
Additional Information: ISSN 0140-3818

Identifiers

Local EPrints ID: 44116
URI: http://eprints.soton.ac.uk/id/eprint/44116
PURE UUID: e29d09af-14a4-4763-b6e7-dba53764951d
ORCID for S.R. Turnock: ORCID iD orcid.org/0000-0001-6288-0400

Catalogue record

Date deposited: 20 Feb 2007
Last modified: 16 Mar 2024 02:37

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