Modelling of hydrodynamics and sediment transport at Pantai Tok Jembal, Kuala Terengganu Mengabang Telipot, Terengganu, using MIKE 21

Abstract

This study is mainly concerned with simulation of hydrodynamics behaviours and sediment transport characteristics at coastal areas. The field data of the coastal area at Mengabang Telipot recorded by Institute of Oceanography at University of Malaysia Terengganu for January and February of year 2009 have been integrated with two-dimensional modelling system, MIKE 21. A hydrodynamic module of MIKE 21 has been used to simulate the hydrodynamic flow of the study area and the output was integrated with the non-cohesive sediment transport module to model the sediment transport patterns, capacity, and bed level changes. The effect of wave-current interaction is included in the simulation. The model simulates the hydrodynamics satisfactorily with mean current velocity 0.15 ms-1 and 0.10 ms-1, respectively, with maximum value up to 0.40 ms-1. Simulated sediment transport pattern spreads eastward predominantly and suggest an average capacity below 400 m3/yr/m. Initial rates of bed level changes vary between -0.01 m/day to 0.01 m/day. Outcome of the simulation is expected to be representative and give hydrodynamics and sediment logical information of the area.