EXPERIMENTAL STUDY ON THE HYDRODYNAMIC RESISTANCE OF A 265 GT FISHING VESSEL WITH WIND-ASSISTED PROPULSION

Anandita Fatihah, . (2026) EXPERIMENTAL STUDY ON THE HYDRODYNAMIC RESISTANCE OF A 265 GT FISHING VESSEL WITH WIND-ASSISTED PROPULSION. Kapal: Jurnal Ilmu Pengetahuan dan Teknologi Kelautan, 23 (1). pp. 22-36. ISSN 2301-9069

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Abstract

This study experimentally evaluates wind-assisted propulsion (WASP) to reduce the resistance of a 265 GT fishing vessel using model-scale towing tank test conducted at the PRTH-BRIN towing tank facility, with towing forces measured using calibrated resistance dynamometers following ITTC recommended procedures. Bare-hull resistance was measured at seven speeds over Froude numbers Fr ≈ 0.12 – 0.30, while tests with the wing sail installed were conducted at three speeds in the upper range (Fr ≈ 0.18 – 0.30) under steady beam wind conditions corresponding to a full-scale true wind speed of 20 knots. Towing-force measurements were converted into total resistance and total resistance coefficients. The wing sail effect was quantified using the wind-assisted percentage (WA%), defined as the relative reduction in resistance compared with the bare-hull condition at the same speed. A Type B uncertainty analysis following ITTC Recommendations was performed for the bare-hull measurements. The results show that, for the tested wind-assisted condition, the wing sail configuration produced lower resistance than the bare-hull at the same speed. The absolute resistance reduction increases with Froude number, reaching about 1.06 N at the highest speed, whereas WA% decreased from about 4.53% to 2.25% indicating a larger relative benefit at lower end of the tested speed range. The expanded relative uncertainty of bare-hull resistance is below 4% for all operating points. Overall, the experiments indicate a measurable wind-assisted contribution from the wing sail and provide a practical framework for assessing WASP performance at model scale using WA% as an indicator.

Item Type:	Article
Additional Information:	[No. Panggil: 2210313012] [Pembimbing 1: Rina] [Pembimbing 2: Wiwin Sulistyawati]
Uncontrolled Keywords:	Fishing Vessel, Wing Sail, Wind-Assisted Ship Propulsion, Towing Tank Experiment, Resistance Characteristics, Wind-Assisted Percentage (WA%)
Subjects:	V Naval Science > V Naval Science (General) V Naval Science > VM Naval architecture. Shipbuilding. Marine engineering
Divisions:	Fakultas Teknik > Program Studi Teknik Perkapalan (S1)
Depositing User:	ANANDITA FATIHAH
Date Deposited:	27 Aug 2026 02:20
Last Modified:	27 Aug 2026 02:20
URI:	http://repository.upnvj.ac.id/id/eprint/52101

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