6DoF CFD Analysis for High-Speed Small Craft in Free Running Conditions

Sungtek Park; Zhaoyuan Wang; Christian Milano; Frederick Stern; Andrew Gunderson; John Scherer; Hironori Yasukawa; Matteo Diez

doi:10.1080/17445302.2024.2393478

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6DoF CFD Analysis for High-Speed Small Craft in Free Running Conditions

Journal article

Peer reviewed

6DoF CFD Analysis for High-Speed Small Craft in Free Running Conditions

Sungtek Park, Zhaoyuan Wang, Christian Milano, Frederick Stern, Andrew Gunderson, John Scherer, Hironori Yasukawa and Matteo Diez

Ships and offshore structures, Vol.20(9), pp.1331-1351

09/02/2025

DOI: 10.1080/17445302.2024.2393478

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Abstract

CFD simulations of a high-speed small craft are performed with 6DoF motions. The hull form and propulsor are scaled to match a deep V fishing boat (DVFB). The on water experimental data of the DVFB was used for qualitative validation. Many captive and free running conditions are considered including some most critical conditions, such as 2DoF captive motion, free running self-propulsion, turning circles in calm water and waves, acceleration, and avoidance line tests. The present work is the first known CFD study for the free running of high-speed small craft with 6DoF motions and is exploratory in nature. The accuracy and performance of the gear case and propeller models are evaluated with the issues identified. Other issues are also discussed including the optimum grid sizes, submerged depth of the gear case, and instabilities. All of these can be provided as recommendations for the future research improvements.

6DoF motion

CFD

free-running

high-speed small craft

manoeuvring

naval and ocean engineering

Details

Title: Subtitle: 6DoF CFD Analysis for High-Speed Small Craft in Free Running Conditions
Creators: Sungtek Park - University of Iowa
Zhaoyuan Wang - University of Iowa
Christian Milano - University of Iowa
Frederick Stern - University of Iowa
Andrew Gunderson
John Scherer
Hironori Yasukawa - Hiroshima University
Matteo Diez - Institute of Marine Engineering
Resource Type: Journal article
Publication Details: Ships and offshore structures, Vol.20(9), pp.1331-1351
DOI: 10.1080/17445302.2024.2393478
ISSN: 1744-5302
eISSN: 1754-212X
Publisher: TAYLOR & FRANCIS LTD
Grant note: Office of Naval Research: N00014- 20-1-2259, N00014-22-1-2413
This work is supported by the Office of Naval Research [grant numbers N00014- 20-1-2259 and N00014-22-1-2413] under the administration of Dr. Robert Brizzolara.
Language: English
Electronic publication date: 08/30/2024
Date published: 09/02/2025
Academic Unit: IIHR--Hydroscience and Engineering; Mechanical Engineering
Record Identifier: 9984701859802771

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