Performance of Bio-Inspired Ship Hull

The functional properties of shark denticles have caught the attention of our engineers and scientist today due to the hydrodynamic effects of its surface roughness of the skin. The skin of a fast swimming shark reveals riblet structures that helps to reduce skin friction drag of the shark making it...

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Main Author:	Siti Nur Azizah, Amran
Format:	Thesis
Language:	English
Published:	2020
Subjects:	TJ Mechanical engineering and machinery
Online Access:	http://ir.unimas.my/id/eprint/31846/3/Performance%20of%20Bio-Inspired%20Ship%20Hull.pdf
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id	my-unimas-ir.31846
record_format	uketd_dc
spelling	my-unimas-ir.318462023-12-04T04:04:28Z Performance of Bio-Inspired Ship Hull 2020-06-15 Siti Nur Azizah, Amran TJ Mechanical engineering and machinery VM Naval architecture. Shipbuilding. Marine engineering The functional properties of shark denticles have caught the attention of our engineers and scientist today due to the hydrodynamic effects of its surface roughness of the skin. The skin of a fast swimming shark reveals riblet structures that helps to reduce skin friction drag of the shark making its movement to be more efficient and faster. This research focuses on modification made on marine vessels which presents the study of biomimetic shark skin (BSS) on surface structure which function is to enhance the hydrodynamic effect of the vessels. Model of simplified version shark skin on rectangular planes (RP), container ship (CS) models and speedboat models are both constructed using Solidworks and computational fluid dynamic (CFD) simulations are then carried out to predict the effectiveness of the hydrodynamic effects of the biomimetic shark skins on both models. Experimental study on speedboat models has also been carried out in order to validate the numerical result obtained. The results are then, compared with both plain models and models with BSS. The presence of BSS on rectangular planes provides significant improvement up to 15% reduction in shear stress and about 25% improvement in velocity flow along the rectangular plane with BSS. Similar to rectangular plane models, improvements for both velocity and shear stresses can also be found in container ship models with BSS. While for both numerical and experimental study of speedboat models, it is also discovered that the implementation of BSS gives positive outcomes in drag reduction. Further discussion on other parameters for the speedboat models like wave height, divergence wave and drag coefficient are also demonstrated in this thesis. Universiti Malaysia Sarawak (UNIMAS) 2020-06 Thesis http://ir.unimas.my/id/eprint/31846/ http://ir.unimas.my/id/eprint/31846/3/Performance%20of%20Bio-Inspired%20Ship%20Hull.pdf text en validuser masters Universiti Malaysia Sarawak (UNIMAS) Faculty of Engineering
institution	Universiti Malaysia Sarawak
collection	UNIMAS Institutional Repository
language	English
topic	TJ Mechanical engineering and machinery TJ Mechanical engineering and machinery
spellingShingle	TJ Mechanical engineering and machinery TJ Mechanical engineering and machinery Siti Nur Azizah, Amran Performance of Bio-Inspired Ship Hull
description	The functional properties of shark denticles have caught the attention of our engineers and scientist today due to the hydrodynamic effects of its surface roughness of the skin. The skin of a fast swimming shark reveals riblet structures that helps to reduce skin friction drag of the shark making its movement to be more efficient and faster. This research focuses on modification made on marine vessels which presents the study of biomimetic shark skin (BSS) on surface structure which function is to enhance the hydrodynamic effect of the vessels. Model of simplified version shark skin on rectangular planes (RP), container ship (CS) models and speedboat models are both constructed using Solidworks and computational fluid dynamic (CFD) simulations are then carried out to predict the effectiveness of the hydrodynamic effects of the biomimetic shark skins on both models. Experimental study on speedboat models has also been carried out in order to validate the numerical result obtained. The results are then, compared with both plain models and models with BSS. The presence of BSS on rectangular planes provides significant improvement up to 15% reduction in shear stress and about 25% improvement in velocity flow along the rectangular plane with BSS. Similar to rectangular plane models, improvements for both velocity and shear stresses can also be found in container ship models with BSS. While for both numerical and experimental study of speedboat models, it is also discovered that the implementation of BSS gives positive outcomes in drag reduction. Further discussion on other parameters for the speedboat models like wave height, divergence wave and drag coefficient are also demonstrated in this thesis.
format	Thesis
qualification_level	Master's degree
author	Siti Nur Azizah, Amran
author_facet	Siti Nur Azizah, Amran
author_sort	Siti Nur Azizah, Amran
title	Performance of Bio-Inspired Ship Hull
title_short	Performance of Bio-Inspired Ship Hull
title_full	Performance of Bio-Inspired Ship Hull
title_fullStr	Performance of Bio-Inspired Ship Hull
title_full_unstemmed	Performance of Bio-Inspired Ship Hull
title_sort	performance of bio-inspired ship hull
granting_institution	Universiti Malaysia Sarawak (UNIMAS)
granting_department	Faculty of Engineering
publishDate	2020
url	http://ir.unimas.my/id/eprint/31846/3/Performance%20of%20Bio-Inspired%20Ship%20Hull.pdf
_version_	1794023016165801984

Performance of Bio-Inspired Ship Hull

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