HYDRODYNAMIC ASSESSMENT ALONG THE COAST OF TANJUNG SEDELI, MALAYSIA

Authors

  • Mohamad Hidayat Jamal Faculty of Civil Engineering, Universiti Teknologi Malaysia, 81310, UTM Johor Bahru, Johor, Malaysia
  • Lee Hin Lee Coastal Management and Oceanography Research Centre, National Hydraulic Research Institute of Malaysia (NAHRIM), 43300, Seri Kembangan, Selangor, Malaysia
  • Ilya Khairanis Othman Centre of River and Coastal Engineering (CRCE), Research Institute for Sustainable Environment (RISE), Universiti Teknologi Malaysia, 81310, UTM Johor Bahru, Johor, Malaysia
  • Yannie Anak Benson Faculty of Civil Engineering, Universiti Teknologi Malaysia, 81310, UTM Johor Bahru, Johor, Malaysia
  • Lavine Wong Faculty of Civil Engineering, Universiti Teknologi Malaysia, 81310, UTM Johor Bahru, Johor, Malaysia
  • Ahmad Hadi Mohamed Rashidi Coastal Management and Oceanography Research Centre, National Hydraulic Research Institute of Malaysia (NAHRIM), 43300, Seri Kembangan, Selangor, Malaysia
  • Abd Haslim Abdul Shukor Lim Faculty of Civil Engineering, Universiti Teknologi Malaysia, 81310, UTM Johor Bahru, Johor, Malaysia
  • Saiful Bahri Hamzah Coastal Management and Oceanography Research Centre, National Hydraulic Research Institute of Malaysia (NAHRIM), 43300, Seri Kembangan, Selangor, Malaysia
  • Dunstan Anthony Pereira Coastal Management and Oceanography Research Centre, National Hydraulic Research Institute of Malaysia (NAHRIM), 43300, Seri Kembangan, Selangor, Malaysia
  • Muhammad Rizal Razali Coastal Management and Oceanography Research Centre, National Hydraulic Research Institute of Malaysia (NAHRIM), 43300, Seri Kembangan, Selangor, Malaysia

DOI:

https://doi.org/10.11113/aej.v14.20269

Keywords:

river mouth, ADCP, Numerical model, coastal waters, Telemac2D

Abstract

Tidal influence plays a significant role in coastal hydrodynamics as the impact may lead to coastal erosion. Tanjung Sedeli located on the southern coast of Malaysia is exposed to low tidal issues which disrupts the navigation of local fishermen due to the shallow river mouth in the area. This study presents the hydrodynamic processes along the shoreline of Tanjung Sedeli. BLUEKENUE was used as the pre-processor to create a bathymetry file and perform mesh generation to set up the initial model boundary which functions as input files for numerical study. TELEMAC2D further processes the hydrodynamic data (tides and currents), calibrated, and validated with the measured field data collected between 24th September to 6th October 2020 covering both spring and neap tide conditions. The nature of tides in the area was mainly mixed tides, predominantly semidiurnal tides. Modelled hydrodynamic values show good conformity with field measurements with an error of 1.4% for water level values, 10.6% and 20o for current speed and direction respectively. Water flows north into the estuary during spring tide with maximum velocity is 0.756m/s surrounding the river mouth and Pulau Tagal. Low velocity values were recorded at the left bank of the river (0.028 m/s) and Pulau Tagal (0.085 m/s) during spring tide. This study provides information on current hydrodynamic condition of the study area.

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Published

2024-02-29

Issue

Vol. 14 No. 1: March 2024

Section

Articles

How to Cite

HYDRODYNAMIC ASSESSMENT ALONG THE COAST OF TANJUNG SEDELI, MALAYSIA. (2024). ASEAN Engineering Journal, 14(1), 129-136. https://doi.org/10.11113/aej.v14.20269