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primary topic: WAKE WASH OF A FAST SMALL BOAT IN RESTRICTED WATERS: MODEL TESTS AND FULL-SCALE MEASUREMENTS

WAKE WASH OF A FAST SMALL BOAT IN RESTRICTED WATERS: MODEL TESTS AND FULL-SCALE MEASUREMENTS
type: AcademicArticle
type: Article
abstract: This paper presents the model testing of an 8.23m boat with hard chine planning hull generated waves at the Kilim recreational park. Wake is considered one of the main causes of riverbank erosion due to the energy carried by waves hitting the riverbank. Initially, ship particulars were measured from actual boats to generate a hull form using MAXSURF software. A lines plan was then generated to fabricate the model using fibreglass. Experiments were conducted in the National Hydraulic Research Institute of Malaysia (NAHRIM) at various speeds at a constant operating draft. The wave patterns generated by the modelled boats at different speeds were recorded for analysis. Wave attenuation for deep water conditions was studied and it was found that the wave exponent, n ranged from -0.36 to -0.75 for all depth Froude number (Fnh) condition. Wave decay analysis was used to estimate wave height for defined water depth. For 11 people with an average mass of 65 kg on board, the produced wave height was greater than the permissible wave wake height of 75 mm. The generated energy exceeded 60 Joules/m for nearly all measured speeds. A boat speed of less than 5 knots was suggested for boats loaded with the maximum passenger limit of 11 people. Other recommendations were made to minimize the wave wake height produced by the modelled boat. © 2022, University of Zagreb Faculty of Mechanical Engineering and Naval Architecture. All rights reserved.
date: 2022
volume: 73
issue: 2
is part of: Brodogradnja
status: peerReviewed
status: published
author list: authors
type: EPrint
type: ArticleEPrint
is part of: repository

University of Zagreb Faculty of Mechanical Engineering and Naval Architecture
type: Organization

Brodogradnja
type: Collection
issn: 0007215X

Nur Shafira Ahmad
type: Person
given name: Nur Shafira
family name: Ahmad

Nik Mohd Ridzuan Shaharuddin
type: Person
given name: Nik Mohd Ridzuan
family name: Shaharuddin

Omar Yaakob
type: Person
given name: Omar
family name: Yaakob

Wan Ahmad Hafiz Wan Mohd Azhary
type: Person
given name: Wan Ahmad Hafiz Wan Mohd
family name: Azhary

Mohd Arif Ismail
type: Person
given name: Mohd Arif
family name: Ismail

Mohd Kamarul Huda Samion
type: Person
given name: Mohd Kamarul Huda
family name: Samion

Ahmad Hadi Mohamed Rashidi
type: Person
given name: Ahmad Hadi Mohamed
family name: Rashidi

Mohamad Hidayat Jamal
type: Person
given name: Mohamad Hidayat
family name: Jamal

Faizul Amri Adnan
type: Person
given name: Faizul Amri
family name: Adnan

Badruzzaman Ahmad
type: Person
given name: Badruzzaman
family name: Ahmad

Andiknurdiyana Bachok
type: Person
given name: Andiknurdiyana
family name: Bachok

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primary topic: WAKE WASH OF A FAST SMALL BOAT IN RESTRICTED WATERS: MODEL TESTS AND FULL-SCALE MEASUREMENTS