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Numerical Study of Effect of Trim on Performance of 12500DWT Cargo Ship Using Ranse Method

Abstract

This paper deals with the results of studying the effect of trim on the performance of series cargo ship 12500DWT in full scale at two operating conditions by using the RANSE method. The Body Force Propeller method is used to simulate a rotating propeller behind the ship. The numerical predicted results at the ballast condition were verified and validated with sea trial data. The ship’s engine power curves for different trim conditions at two operating conditions were carried out to produce a data source to evaluate the effect of trim on the performance of the 12500DWT cargo ship. The results indicate that if the ship operates under optimum trim conditions, this can decrease the ship’s engine power in a range from 2.5 to 4.5% depending on different loading conditions and ship speeds. Finally, the paper also provides detailed differences in flow around the ship due to trim variation to explain the physical phenomenon of changing ship performance.

Keywords:

RANSE, Ship performance, Trim optimisation, Operating condition, Ship speed

Details

Issue
Vol. 29 No. 1 (2022)
Section
Latest Articles
Published
27-07-2022
DOI:
https://doi.org/10.2478/pomr-2022-0001
Licencja:
Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Open Access License

This journal provides immediate open access to its content under the Creative Commons BY 4.0 license. Authors who publish with this journal retain all copyrights and agree to the terms of the CC BY 4.0 license.

 

Authors

  • Tran Quoc Chuan

    Vietnam Maritime University, Vietnam
  • Nguyen Kim Phuong

    Vietnam Maritime University, Vietnam
  • Tran Ngoc Tu

    Vietnam Maritime University, Vietnam
  • Mai Van Quan

    Military Institute of Ship Design, Vietnam
  • Nguyen Duy Anh

    1. Ho Chi Minh City University of Technology (HCMUT), Vietnam 2. Vietnam National University Ho Chi Minh City, Vietnam
  • Tat-Hien Le

    1. Ho Chi Minh City University of Technology (HCMUT), Vietnam 2. Vietnam National University Ho Chi Minh City, Vietnam

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