Relation Dynamic Shear Stress and Wake Boat Waves Energy
Mohammad Fadhli Ahmad1, Mohd Sofiyan Sulaiman2, Che Wan Mohd Noor Che Wan Othman3, Khalid Samo4, Mohammad Fakhratul Ridwan Zulkifli5
1Mohammad Fadhli Ahmad*, Faculty of Ocean Engineering Technology and Informatics, Universiti Malaysia Terengganu, Kuala Nerus, Malaysia.
2Mohd Sofiyan Sulaiman, Faculty of Ocean Engineering Technology and Informatics, Universiti Malaysia Terengganu, 21030, Kuala Nerus, Malaysia.
3Che Wan Mohd Noor Che Wan Othman, Faculty of Ocean Engineering Technology and Informatics, Universiti Malaysia Terengganu, Kuala Nerus, Malaysia.
4Khalid Samo, Faculty of Ocean Engineering Technology and Informatics, Universiti Malaysia Nerus, Kuala Nerus, Malaysia.
5Mohammad Fakhratul Ridwan Zulkifli, Faculty of Ocean Engineering Technology and Informatics, Universiti Malaysia Terengganu, 21030, Kuala Nerus, Malaysia.
Manuscript received on March 16, 2020. | Revised Manuscript received on March 24, 2020. | Manuscript published on March 30, 2020. | PP: 2558-2564 | Volume-8 Issue-6, March 2020. | Retrieval Number: F8527038620/2020©BEIESP | DOI: 10.35940/ijrte.F8527.038620
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: Coastal area is the most populated throughout the world due to its business activities especially those involves commercial or recreational vessels to bring people or goods. Inadvertently, heavily vessels traffic will create effect on shoreline, riverbank or estuaries in which resulting an erosion problem. Overcoming the problem, a few local state authorities are enforcing a regulation for the vessels to cruise along the coastline to minimize the erosion impact. This research was conducted to study the relationship of dynamic shear stress generated from wake boat and tidal flow induced energy at Kemaman river estuary, which located at Kemaman province, East Coast of Peninsular Malaysia. Evidence shows that erosion occurred along the riverbank, and it was confirmed that the vessels contribute to the erosion problem due to negligence of vessels’ speed. In addition, apart from the generated energy coming from the vessel, the dimension of the vessels also contributes to the erosion problem. The estimation of total energy created by each vessel is established by a formula through the relationship with wave energy under influenced of maximum wave height. The results indicate that increases in energy will increase the dynamic shear stress due to orbital wave velocity whereby it is a function of wave height generated by boat wave. Finally, the results also indicate addition minimum tidal flow rate and wake boat contributes higher dynamic shear stress as compared to mud bed shear stress. Therefore, it can be concluded that wake boat waves play a significant role in determining the riverbank erosion. The finding of this study serves some information as guidance to local state authority to impose regulation to community whom using the vessels to navigate through this estuary.
Keywords: Boat Wave Wake, Erosion, Wave Energy.
Scope of the Article: Evaluation of Glazing Systems for Energy Performance.