Investigations on experimental and computational trim optimisation methods

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Korkmaz, Kadir Burak,1989RISE,Maritima avdelningen,Chalmers University of Technology, Sweden,Chalmers tekniska högskola,RISE Research Institutes of Sweden (author)

Investigations on experimental and computational trim optimisation methods

Article/chapterEnglish2023

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Elsevier Ltd,2023
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LIBRIS-ID:oai:research.chalmers.se:b46d85e3-8ae5-4cda-af99-fb62613e8be2
https://research.chalmers.se/publication/538205URI
https://doi.org/10.1016/j.oceaneng.2023.116098DOI
https://urn.kb.se/resolve?urn=urn:nbn:se:ri:diva-67674URI

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Language:English
Summary in:English

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Subject category:art swepub-publicationtype
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Notes

This research was funded by Energimyndigheten, the Swedish Energy Agency , grant 2020-018759 , and the computational resources provided by RISE-SSPA Maritime Center.
Shipping is vital for global trade but also emits significant greenhouse gases. To address this issue, various measures have been proposed, including improved ship design, alternative fuels, and improved operational practices. One such cost-effective operational measure is trim optimisation, which involves operating the ship at the hydrodynamically optimal forward and aft draughts. This study focuses on investigating the trim trends of a RoPax vessel using experimental fluid dynamics (EFD) and computational fluid dynamics (CFD) methods. The trim trends are derived in resistance and self-propelled modes. Multiple CFD methods are examined, along with different extrapolation techniques for experimental results. Uncertainty assessment is conducted for the experimental data, and a verification and validation study is performed. Furthermore, the predictions are compared with real operational data. The findings reveal that determining trim trends solely in towed mode is inadequate due to the profound influence of the operating propeller. Some of the investigated CFD methods demonstrate good agreement with the model test results in self-propelled mode, while others exhibit limitations. By selecting appropriate models and configurations, this study demonstrates that trim trends can be determined with sufficient precision, as evidenced by the comparison between ship operational data and predictions from EFD and CFD methods.

Subject headings and genre

NATURVETENSKAP Data- och informationsvetenskap Språkteknologi hsv//swe
NATURAL SCIENCES Computer and Information Sciences Language Technology hsv//eng
TEKNIK OCH TEKNOLOGIER Maskinteknik Farkostteknik hsv//swe
ENGINEERING AND TECHNOLOGY Mechanical Engineering Vehicle Engineering hsv//eng
TEKNIK OCH TEKNOLOGIER Maskinteknik Strömningsmekanik och akustik hsv//swe
ENGINEERING AND TECHNOLOGY Mechanical Engineering Fluid Mechanics and Acoustics hsv//eng
TEKNIK OCH TEKNOLOGIER Naturresursteknik Marin teknik hsv//swe
ENGINEERING AND TECHNOLOGY Environmental Engineering Marine Engineering hsv//eng
TEKNIK OCH TEKNOLOGIER Maskinteknik hsv//swe
ENGINEERING AND TECHNOLOGY Mechanical Engineering hsv//eng
Transom flow
CFD
Ship monitoring
Verification and validation
Combined EFD/CFD methods
Trim optimisation

Added entries (persons, corporate bodies, meetings, titles ...)

Werner, SofiaRISE,Maritima avdelningen,RISE Research Institutes of Sweden(Swepub:ri)SofiaWe@ri.se (author)
Bensow, Rickard,1972Chalmers tekniska högskola,Chalmers University of Technology,Chalmers University of Technology, Sweden(Swepub:cth)ribe (author)
RISEMaritima avdelningen (creator_code:org_t)

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In:Ocean Engineering: Elsevier Ltd2880029-80181873-5258

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