Biopolymer of monepterus albus slime on catamaran model wall for turbulent drag reduction

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Abstract

The surface viscous liquid is one of fish's resistance reduction elements. The fish surface is covered with viscous liquid, which is considered to reduce the resistance. As compared with a solvent, a certain polymer solution of several ppm to several hundred ppm offers substantially reduced turbulent frictional resistance. The relationship between the Tom's effect and reduction of viscosity resistance is described. The purpose of this research is to study the drag reduction in resistance of catamaran model by slime monepterus albus solution in wall. The catamaran model with hull L = 1.8 m, B = 0.32m and T = 0.12 m pulled by electric motor which the motor speed can be varied. The ship model resistance is measured by load cell anemometer. The difference of friction coefficient is expressed as a reduction in friction drag. The results shows the drag reduction about 4-7%.

Original languageEnglish
Title of host publicationRINA, Royal Institution of Naval Architects - International Conference on Ship and Offshore Technology, ICSOT Indonesia 2012
Subtitle of host publicationDevelopments in Ship Design and Construction
Pages117-121
Number of pages5
Publication statusPublished - 1 Dec 2012
EventInternational Conference on Ship and Offshore Technology: Developments in Ship Design and Construction, ICSOT Indonesia 2012 - Ambon, Indonesia
Duration: 7 Nov 20128 Nov 2012

Publication series

NameRINA, Royal Institution of Naval Architects - International Conference on Ship and Offshore Technology, ICSOT Indonesia 2012: Developments in Ship Design ad Construction

Conference

ConferenceInternational Conference on Ship and Offshore Technology: Developments in Ship Design and Construction, ICSOT Indonesia 2012
CountryIndonesia
CityAmbon
Period7/11/128/11/12

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