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130378 - Estimation of a ship's nominal wake fraction through full-scale speed trials.pdf (1.67 MB)

Estimation of a ship’s nominal wake fraction through full-scale speed trials

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conference contribution
posted on 2023-05-23, 13:53 authored by Dubois, A, Jonathan BinnsJonathan Binns
A ship’s nominal wake fraction is a key parameter in the design of the marine propulsion system, i.e. the the marine propulsor and main engine. Determination of the wake fraction is commonly done through empirical formulas and / or based on model-scale experiments. However, a discrepancy exists between the model- and full-scale estimation results because of the way scaling is applied. Speed trials are conducted to estimate the full-scale nominal wake fraction. Results show the ability of the developed speed-trial methodology to provide an initial estimation of the full-scale nominal wake. However, comparison between the empirical, model-scale, and full-scale results fails to provide conclusive results. No real insight into the validity of the estimated full-scale nominal wake fraction could be established. However, the applied methodology is deemed to have value but additional research is required before further conclusions can be drawn.

History

Publication title

Proceedings of the 21st Australasian Fluid Mechanics Conference

Editors

TCW Lau, RM Kelso

Pagination

1-4

ISBN

9780646597843

Department/School

Australian Maritime College

Publisher

Australasian Fluid Mechanics Society

Place of publication

Australia

Event title

21st Australasian Fluid Mechanics Conference

Event Venue

Adelaide

Date of Event (Start Date)

2018-12-10

Date of Event (End Date)

2018-12-13

Rights statement

Copyright unknown

Repository Status

  • Open

Socio-economic Objectives

Expanding knowledge in engineering

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