Two-dimensional Hydrodynamic Modelling of Tides at Triso Island, Burung Island and Nearby River Mouths using Delft3D
| dc.contributor.author | Imran Ali | |
| dc.date.accessioned | 2026-09-11T01:41:20Z | |
| dc.date.issued | 2023 | |
| dc.description | National efforts to reduce energy dependency on fossil fuels have prompted the examination of macrotidal nearshore sites around the Malaysian coastline for potential tidal stream resource development. A number of prospective tidal energy sites in the Sarawak state of Malaysia have been identified, but the local hydrodynamics of these sites are often poorly understood. Tidal energy developers rely on detailed characterization of tidal energy sites prior to turbine installation and field trials. Although first-order appraisals may make macrotidal tidal straits appear attractive for development, detailed, site-specific hydrodynamic and bathymetric models are important for determining site suitability for tidal stream turbine (TST) installation. Therefore, in this research study, a site-specific regional hydrodynamic model was set up for a previously known macrotidal site of Triso Island in Sarawak, to understand the tidal characteristics and to determine the areas of higher tidal stream energy density. Sensitivity analysis has been carried out to get the most suitable values for the model parameters, including time step, Manning’s coefficient, Horizontal Eddy Viscosity (HEV), and grid resolution. The suitable values of these parameters were chosen based on criteria of RMSE value of 20 cm for water level. The model has been validated against water level by comparing it with TPXO output data. It was observed that changes on horizontal eddy viscosity and time step do not have any effect on the model performance, while the best value of the Manning’s coefficient to compute bottom roughness was observed to be 0.025 𝑠𝑚13⁄⁄. Two sites near Triso Island and Burung Island are identified to be best for tidal energy harnessing among all, the maximum energy density at Triso Island and Burung Island was noted to be 0.4 kW/m2 and 0.6 kW/m2, respectively. | |
| dc.identifier.uri | https://scholarhub.unimas.my/handle/123456789/2184 | |
| dc.language.iso | English | |
| dc.publisher | UNIVERSITI MALAYSIA SARAWAK | |
| dc.relation.ispartofseries | Faculty of Engineering | |
| dc.subject | Tidal energy, hydrodynamic modelling, Delft3D modelling, Renewable Energy Sarawak | |
| dc.title | Two-dimensional Hydrodynamic Modelling of Tides at Triso Island, Burung Island and Nearby River Mouths using Delft3D | |
| dc.type | Masters |