Wave-assisted propulsion: an experimental study on traveling ships

ChunYin Chan; Junxian Wang; Liang Yang; Jun Zang

doi:10.1063/5.0190630

Wave-assisted propulsion: an experimental study on traveling ships

ChunYin Chan, Junxian Wang, Liang Yang, Jun Zang

Cranfield University

Research output: Contribution to journal › Article › peer-review

3 Citations (SciVal)

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Abstract

A submerged hydrofoil interacting with incoming waves produces combined heaving and pitching motion, facilitating the conversion of wave energy into thrust. When the foil is attached to the ship hull, the generated “green” power from wave energy could assist the ship's propulsion system and significantly reduce fuel costs. This study experimentally assesses thrust generation from a fixed mid-hull foil by comparing towing force at different wave and traveling speeds. The optimal mid-hull foil demonstrates a fuel cost reduction ranging from 10.3% to 20.4% at diverse traveling speeds and wave parameters. Thrust generation increases at higher traveling speeds. Additionally, this study mathematically describes the hydrofoil motion with an outer pivot, which better suits the ship–foil model. This study then introduces a Strouhal number (St A;S)
⁠specifically for the ship–foil model, considering ship travel, ship response, and the hydrofoil's rotation around its outer pivot.

Original language	English
Article number	027136
Number of pages	10
Journal	Physics of Fluids
Volume	36
Issue number	2
Early online date	23 Feb 2024
DOIs	https://doi.org/10.1063/5.0190630
Publication status	Published - 29 Feb 2024

Data Availability Statement

Data sharing is not applicable to this article as no new data were created or analyzed in this study.

Funding

This work has been supported by the Department for Transport's (DfT) Transport Research and Innovation Grant (No. TRIG2022): G-TRANSPORT: greening transportation of cargo ships via hybrid wave propulsion.

Funders	Funder number
Department for Transport's	TRIG2022

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10.1063/5.0190630

ShipFoil_exp_Nicky_Oct_PhysFluids accpted
This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. The following article appeared in ChunYin Chan, Junxian Wang, Liang Yang, Jun Zang; Wave-assisted propulsion: An experimental study on traveling ships. Physics of Fluids 1 February 2024; 36 (2): 027136. https://doi.org/10.1063/5.0190630 and may be found at https://pubs.aip.org/aip/pof/article/36/2/027136/3267234/Wave-assisted-propulsion-An-experimental-study-on
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Cite this

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Wave-assisted propulsion: an experimental study on traveling ships

Abstract

Data Availability Statement

Funding

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