• Vol 6, No 6 (2015)
  • Chemical Engineering

The Replication of Micro-Riblets on Ship Hulls for Drag Reduction Applications

Sugeng Supriadi, Gunawan , Yanuar , Heri Sulistyo Budhi


Publish at : 01 Sep 2015 - 00:00
IJtech : IJtech Vol 6, No 6 (2015)
DOI : http://dx.doi.org/10.14716/ijtech.v6i5.1880

Cite this article as:
Supriadi, S., Gunawan., Yanuar., & Budhi, H.S. 2015. The Replication of Micro-Riblets on Ship Hulls for Drag Reduction Applications. International Journal of Technology. Volume 6(6), pp.983-989
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Sugeng Supriadi Department of Mechanical Engineering, Faculty of Engineering, Universitas Indonesia, Kampus Baru UI Depok, Depok 16424, Indonesia
Gunawan Department of Mechanical Engineering, Faculty of Engineering, Universitas Indonesia, Kampus Baru UI Depok, Depok 16424, Indonesia
Yanuar Department of Mechanical Engineering, Faculty of Engineering, Universitas Indonesia, Kampus Baru UI Depok, Depok 16424, Indonesia
Heri Sulistyo Budhi Department of Mechanical Engineering, Faculty of Engineering, Universitas Indonesia, Kampus Baru UI Depok, Depok 16424, Indonesia
Email to Corresponding Author

Abstract

Desired higher ship speeds can be achieved using many performance enhancement techniques. One of the techniques is drag reduction of ships’ hulls by imbuing their surfaces with hydrophobic properties This paper presents an alternative method off a bricating micro-riblets using laminate transfer molding to modify painting morphology for micro-riblets’ replication on ships’ hulls. A performance test of these micro-riblets is also performed. The results show that micro-ribletscan be replicated from the pattern to the ships’ hulls. The geometries ofmicro-riblets are verified, which shows good agreement with the pattern. The performance of the fabricated micro-riblets was verified to decrease drag onthe ship. As a result, ships’ speeds increased under similar propulsion power.The significant effect of micro-riblets is obtained with these higher speeds.

Drag reduction; High speed boat; Laminate transfer molding; Micro-replication; Micro-riblets

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