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Effects of Geometry on the Performance of Podded Propulsors

journal contribution
posted on 2023-05-16, 22:50 authored by Islam, M, Veitch, B, Molloy, S, Neil Bose, Lui, P
This paper presents results and analyses of an experimental study into the effects of geometric parameters on the propulsive characteristics of puller and pusher podded propulsors in straight course open water conditions. Five geometric parameters were chosen for the current study and a design of experiment technique was used to design a series of 16 pods that combined the parameters. Tests on the 16 different pod-strut-propeller combinations in puller and pusher configurations were completed using a custom designed podded propeller test rig. The dynamometry consisted of a six-component global dynamometer and a three-component pod dynamometer. The test rig was used to measure the thrust and torque of the propellers, and forces and moments on the whole unit in the three orthogonal directions. The design of experiment analysis technique was then used to identify the most significant geometric parameters and interaction of parameters that affect propeller thrust, torque and efficiency as well as unit thrust and efficiency in both the puller and pusher configurations. An uncertainty analysis of the measurements is also presented.

History

Publication title

Transactions of the Society of Naval Architects and Marine Engineers

Volume

115

Issue

2007

Pagination

140-162

ISSN

0081-1661

Department/School

Australian Maritime College

Publisher

Society of Naval Architects and Marine Engineers

Place of publication

United States

Repository Status

  • Restricted

Socio-economic Objectives

Expanding knowledge in engineering

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    University Of Tasmania

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