Journal article
Physical analysis methods for planing hull turning circles
Ocean engineering, Vol.321, 120348
03/2025
DOI: 10.1016/j.oceaneng.2025.120348
Abstract
In the present study, an analysis method is proposed for the steady turning circles of high-speed small craft using the circular motion equations and applying force and moment balances with multiple coordinate systems. Multiple coordinate systems are necessary since multiple components of forces, moments, and motions are created and coupled during turning. The horizontal ship-fixed and cylindrical coordinates are used to derive the circular motion equations, with the forces and velocities projected to the horizontal ship-fixed system to calculate the drift angle, centrifugal force, and speed loss. The proposed method is applied to analyze the results for both a displacement hull and a high-speed planing hull. For the displacement hull, the force balances in the ship-fixed and horizontal ship-fixed systems are very similar due to the negligible roll and pitch angles. For the planing hull with different steering angles, the sway forces show very different trends in different coordinate systems. The dominant force component differs with different hull forms and steering angles in the ship-fixed system, but is the same in the horizontal ship-fixed coordinate system. The differences in heel angle signs for the displacement hull and planing hull have been explained. It should be recognized that the analysis methods presented herein can also be useful to other researchers using their own experimental and/or CFD data to reach similar beneficial results and conclusions.
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•An analysis method for the steady turning circles of high-speed small craft is proposed.•Multiple coordinate systems are used for the circular motion equations and force and moment balances.•Horizontal ship-fixed system is needed for the circular motion analysis of the high-speed planing hulls.•The differences in heel angle signs for the KCS and GPPH are explained.•The dominant force component is different in the ship-fixed system but the same in the horizontal ship-fixed system.
Details
- Title: Subtitle
- Physical analysis methods for planing hull turning circles
- Creators
- Zhaoyuan Wang - IIHR-Hydroscience & Engineering, University of Iowa, Iowa City, 52242, IA, USASungtek Park - University of IowaChristian Milano - University of IowaYugo Sanada - University of IowaDeniz Ozturk Sarigul - University of Iowa, IIHR--Hydroscience and EngineeringFrederick Stern - University of IowaAndrew GundersonJohn SchererHironori Yasukawa - Hiroshima UniversityMatteo Diez - Institute of Marine Engineering
- Resource Type
- Journal article
- Publication Details
- Ocean engineering, Vol.321, 120348
- DOI
- 10.1016/j.oceaneng.2025.120348
- ISSN
- 0029-8018
- eISSN
- 1873-5258
- Publisher
- Elsevier Ltd; OXFORD
- Grant note
- Office of Naval Research, United States: N00014-20-1-2259, N00014-22-1-2413, N00014-21-1-2060, N00014-21-1-2399
This work is supported by the Office of Naval Research, United States grants N00014-20-1-2259 and N00014-22-1-2413 under the administration of Dr. Robert Brizzolara and grants N00014-21-1-2060 and N00014-21-1-2399 under the administration of Dr. Woei-Min Lin. The simulations presented in this work were performed at the Department of Defense (DoD) Supercomputing Resource Centers (DSRCs) through the High Performance Computing Modernization Program (HPCMP).
- Language
- English
- Date published
- 03/2025
- Academic Unit
- IIHR--Hydroscience and Engineering; Mechanical Engineering
- Record Identifier
- 9984775264302771
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