Wake wash of a fast small boat in restricted waters: Model tests and full-scale measurements
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...
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University of Zagreb Faculty of Mechanical Engineering and Naval Architecture
2022
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Online Access: | http://eprints.utm.my/id/eprint/101269/1/NikMohdRidzuan2022_WakeWashofaFastSmallBoat.pdf http://eprints.utm.my/id/eprint/101269/ http://dx.doi.org/10.21278/brod73206 |
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my.utm.1012692023-06-08T08:21:35Z http://eprints.utm.my/id/eprint/101269/ Wake wash of a fast small boat in restricted waters: Model tests and full-scale measurements Ismail, Mohd. Arif Shaharuddin, Nik Mohd. Ridzuan Yaakob, Omar Jamal, Mohamad Hidayat Adnan, Faizul Amri Mohamed Rashidi, Ahmad Hadi Wan Mohd. Azhary, Wan Ahmad Hafiz Samion, Mohd. Kamarul Huda Bachok, Andiknurdiyana Ahmad, Badruzzaman Ahmad, Nur Shafira TJ Mechanical engineering and machinery 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. University of Zagreb Faculty of Mechanical Engineering and Naval Architecture 2022 Article PeerReviewed application/pdf en http://eprints.utm.my/id/eprint/101269/1/NikMohdRidzuan2022_WakeWashofaFastSmallBoat.pdf Ismail, Mohd. Arif and Shaharuddin, Nik Mohd. Ridzuan and Yaakob, Omar and Jamal, Mohamad Hidayat and Adnan, Faizul Amri and Mohamed Rashidi, Ahmad Hadi and Wan Mohd. Azhary, Wan Ahmad Hafiz and Samion, Mohd. Kamarul Huda and Bachok, Andiknurdiyana and Ahmad, Badruzzaman and Ahmad, Nur Shafira (2022) Wake wash of a fast small boat in restricted waters: Model tests and full-scale measurements. Brodogradnja, 73 (2). pp. 93-119. ISSN 0007-215X http://dx.doi.org/10.21278/brod73206 DOI : 10.21278/brod73206 |
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TJ Mechanical engineering and machinery Ismail, Mohd. Arif Shaharuddin, Nik Mohd. Ridzuan Yaakob, Omar Jamal, Mohamad Hidayat Adnan, Faizul Amri Mohamed Rashidi, Ahmad Hadi Wan Mohd. Azhary, Wan Ahmad Hafiz Samion, Mohd. Kamarul Huda Bachok, Andiknurdiyana Ahmad, Badruzzaman Ahmad, Nur Shafira Wake wash of a fast small boat in restricted waters: Model tests and full-scale measurements |
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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. |
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Article |
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Ismail, Mohd. Arif Shaharuddin, Nik Mohd. Ridzuan Yaakob, Omar Jamal, Mohamad Hidayat Adnan, Faizul Amri Mohamed Rashidi, Ahmad Hadi Wan Mohd. Azhary, Wan Ahmad Hafiz Samion, Mohd. Kamarul Huda Bachok, Andiknurdiyana Ahmad, Badruzzaman Ahmad, Nur Shafira |
author_facet |
Ismail, Mohd. Arif Shaharuddin, Nik Mohd. Ridzuan Yaakob, Omar Jamal, Mohamad Hidayat Adnan, Faizul Amri Mohamed Rashidi, Ahmad Hadi Wan Mohd. Azhary, Wan Ahmad Hafiz Samion, Mohd. Kamarul Huda Bachok, Andiknurdiyana Ahmad, Badruzzaman Ahmad, Nur Shafira |
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Ismail, Mohd. Arif |
title |
Wake wash of a fast small boat in restricted waters: Model tests and full-scale measurements |
title_short |
Wake wash of a fast small boat in restricted waters: Model tests and full-scale measurements |
title_full |
Wake wash of a fast small boat in restricted waters: Model tests and full-scale measurements |
title_fullStr |
Wake wash of a fast small boat in restricted waters: Model tests and full-scale measurements |
title_full_unstemmed |
Wake wash of a fast small boat in restricted waters: Model tests and full-scale measurements |
title_sort |
wake wash of a fast small boat in restricted waters: model tests and full-scale measurements |
publisher |
University of Zagreb Faculty of Mechanical Engineering and Naval Architecture |
publishDate |
2022 |
url |
http://eprints.utm.my/id/eprint/101269/1/NikMohdRidzuan2022_WakeWashofaFastSmallBoat.pdf http://eprints.utm.my/id/eprint/101269/ http://dx.doi.org/10.21278/brod73206 |
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13.18916 |