Drag reduction of X-pentamaran ship model with asymmetric-hull outrigger configurations and hull separation. (February 2020)

• Record Type: Journal Article
• Authors: Yanuar, ; Ibadurrahman, Ibadurrahman; Gunawan, A.; Wibowo, R.A.; Gunawan,
• Is Part Of: Energy reports. Volume 6(2020)Supplement 2
• Page Start: 784
• Page End: 789
• Publication Date: 2020-02
• Subjects: Drag reduction -- Asymmetric-hull configuration -- Pentamaran -- Wigley-hull form -- Hull separation; Power resources -- Periodicals; Energy industries -- Periodicals; Power resources; Periodicals; Electronic journals; 621.04205
• DOI: 10.1016/j.egyr.2019.11.158
• Languages: English
• ISSNs: 2352-4847

Abstract

Abstract: The needs to reduce energy consumption have to be applied to all sector, and one of them is transportation. Shipping is the most significant component of it, and therefore optimising a ship performance and reducing its resistance is a subject for many researchers. One of many ways to reduce drag is by utilising an alternative design such as multihull vessel, especially pentamaran, a vessel with five hulls. Destructive interference between their system of waves produced by their hulls is beneficial to reduce power consumption. An experimental test of X-pentamaran model in calm water condition had been conducted to investigate the interference resistance. Wigley hull-form of the model with four asymmetric-hull configurations and three variations of hull separation was investigated. The ship model was towed in a fixed towing condition and calm water condition with Froude number ranging from 0.2 to 0.7. The results showed that the hull separation made a slight alteration of the total resistant coefficient (in magnitude) on the same configuration. Even though not a single configuration outperformed the others in the entire range of Froude number, two configurations with S/L =0.11 showed the highest drag reduction performance as the optimum model based on their Froude number range: configuration A3 from Froude number ranging from the initial to 0.6 and configuration C3 for the rest of the Froude number range.