Experimental and numerical study of ship resistance due to variation of Hull Vane® positioning in the longitudinal direction

I. K. Suastika, A. Firdhaus, R. Akbar, W. D. Aryawan, I. K.A.P. Utama, S. Riyadi, B. Ganapathisubramani

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

5 Citations (Scopus)

Abstract

Effects of the Hull Vane® positioning in the longitudinal direction on ship resistance are studied with the aid of computational fluid dynamics (CFD) simulations, verified using data from towing tests. A 31 m hard-chine crew boat was considered with three variations of vane’s positioning: vane’s leading edge in line with the transom, vane’s leading edge one chord length behind the transom and vane’s leading edge two chord lengths behind the transom. The vane’s submerged depth is three quarter of the ship’s draft. The vane’s planform is rectangular with NACA 641-212 section and aspect ratio of 8.50. At relatively low speed (Fr < 0.5) the Hull Vane® results in an increase of total resistance while at relatively high speed (Fr > 0.5) it results in a decrease of total resistance. The decrease can reach a maximum value of 13.21% for the case of vane’s positioning with the leading edge two chord lengths behind the transom. The Hull Vane® was found to work most effectively at the Froude number range between 0.5 and 0.7. At Froude numbers larger than 0.7 the vane’s lift becomes too large to result in an excessive bow-down trim, which ultimately results in an increase of total resistance.

Original languageEnglish
Title of host publicationRINA, Royal Institution of Naval Architects - Proceedings of International Conference on Ship and Offshore Technology "Developments Marine Design, Construction and Operation"
EditorsGood Rindo, Muhammad Iqbal, Berlian Arswendo Adietya
PublisherRoyal Institution of Naval Architects
Pages5-14
Number of pages10
ISBN (Electronic)9781713830368
Publication statusPublished - 1 Nov 2019
Event6th International Conference on Ship and Offshore Technology - Indonesia: Developments Marine Design, Construction and Operation, ICSOT Indonesia 2019 - Semarang, Indonesia
Duration: 25 Nov 201926 Nov 2019

Publication series

NameRINA, Royal Institution of Naval Architects - Proceedings of International Conference on Ship and Offshore Technology "Developments Marine Design, Construction and Operation"

Conference

Conference6th International Conference on Ship and Offshore Technology - Indonesia: Developments Marine Design, Construction and Operation, ICSOT Indonesia 2019
Country/TerritoryIndonesia
CitySemarang
Period25/11/1926/11/19

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