Influence of lift distribution coefficient on hydrodynamic performance of  propeller in forward and astern mode of operation by numerical analysis

HE Wei; GUO Jiawei; HU Xiaofei; Liu Mingjing; BAI Tiechao; LI Ziru

doi:10.19693/j.issn.1673-3185.02288

Volume 17 Issue 1

Mar. 2022

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Article Navigation > Chinese Journal of Ship Research > 2022 > 17(1): 42-50

HE W, GUO J W, HU X F, et al. Influence of lift distribution coefficient on hydrodynamic performance of propeller in forward and astern mode of operation by numerical analysis[J]. Chinese Journal of Ship Research, 2022, 17(1): 42–50 doi: 10.19693/j.issn.1673-3185.02288

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Influence of lift distribution coefficient on hydrodynamic performance of propeller in forward and astern mode of operation by numerical analysis

doi: 10.19693/j.issn.1673-3185.02288

1.
School of Naval Architecture, Ocean and Energy Power Engineering, Wuhan University of Technology, Wuhan 430063, China
2.
China Ship Development and Design Center, Wuhan 430064, China

Received Date: 2021-02-02
Rev Recd Date: 2021-04-07

Available Online: 2022-01-29

Publish Date: 2022-03-02

Abstract

This is an Open Access article distributed under the terms of the Creative Commons Attribution 4.0 International License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Objectives The influence of the geometrical parameters of propeller on its hydrodynamic performance in forward and astern mode of operation is studied by numerical simulation. Methods Taking a 33 000 DWT oil product tanker as the application object, the hydrodynamic performance of a MAU-series propeller and three theoretical propellers operated in forward and astern mode is simulated using the RANS method combined with the Realizable k-ε turbulence model. The influence of the lift distribution coefficient, pitch and camber combination on the hydrodynamic performance of propeller in both operation modes are then discussed through comparison. Results The results show that in forward and astern operation mode, the pitch of the blade will generate positive lift, whereas the camber of the blade will generate positive and negative lift alternately. Properly increasing the camber and reducing the pitch of the propeller in design is beneficial for improving its open water efficiency in forward operation mode. On the contrary, adopting the combination of a large pitch and a small camber is beneficial for increasing reverse thrust. Conclusion Based on the experimental data, suggestions on performace trade-offs of designing a propeller in both operation modes are given.
- marine propeller performance,
- astern operation,
- forward operation,
- hydrodynamic performance,
- RANS

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