Numerical Modelling on Physical Model of Ringlet Reservoir, Cameron Highland, Malaysia: How Flow Conditions Affect the Hydrodynamics
Safari Mat Desa,
Mohamad Hidayat Jamal,
Mohd Syazwan Faisal Mohd,
Mohd Kamarul Huda Samion,
Nor Suhaila Rahim,
Rahsidi Sabri Muda,
Radzuan Sa’ari,
Erwan Hafizi Kasiman,
Mushairry Mustaffar,
Daeng Siti Maimunah Ishak,
Muhamad Zulhasif Mokhtar
Affiliations
Safari Mat Desa
National Water Research Institute of Malaysia (NAHRIM), Ministry of Environment and Water (KASA), Lot 5377, Jalan Putra Permai, Seri Kembangan 43300, Selangor, Malaysia
Mohamad Hidayat Jamal
Faculty of Civil Engineering, Universiti Teknologi Malaysia (UTM), Johor Bahru 81310, Johor, Malaysia
Mohd Syazwan Faisal Mohd
National Water Research Institute of Malaysia (NAHRIM), Ministry of Environment and Water (KASA), Lot 5377, Jalan Putra Permai, Seri Kembangan 43300, Selangor, Malaysia
Mohd Kamarul Huda Samion
National Water Research Institute of Malaysia (NAHRIM), Ministry of Environment and Water (KASA), Lot 5377, Jalan Putra Permai, Seri Kembangan 43300, Selangor, Malaysia
Nor Suhaila Rahim
Faculty of Civil Engineering, Universiti Teknologi Malaysia (UTM), Johor Bahru 81310, Johor, Malaysia
Rahsidi Sabri Muda
TNB Research Sdn Bhd, Lorong Ayer Itam, Kawasan Institusi Penyelidikan, Kajang 43000, Selangor, Malaysia
Radzuan Sa’ari
Faculty of Civil Engineering, Universiti Teknologi Malaysia (UTM), Johor Bahru 81310, Johor, Malaysia
Erwan Hafizi Kasiman
Faculty of Civil Engineering, Universiti Teknologi Malaysia (UTM), Johor Bahru 81310, Johor, Malaysia
Mushairry Mustaffar
Faculty of Civil Engineering, Universiti Teknologi Malaysia (UTM), Johor Bahru 81310, Johor, Malaysia
Daeng Siti Maimunah Ishak
Faculty of Civil Engineering, Universiti Teknologi Malaysia (UTM), Johor Bahru 81310, Johor, Malaysia
Muhamad Zulhasif Mokhtar
Faculty of Civil Engineering, Universiti Teknologi Malaysia (UTM), Johor Bahru 81310, Johor, Malaysia
The relative impacts of changes in the storage capacity of a reservoir are strongly influenced by its hydrodynamics. This study focused mainly on predicting the flow velocities and assessing the effectiveness of groynes as control mitigation structures in changes in the water depth and velocity distributions in Ringlet Reservoir. Initially, the physical model of the Habu River (the main part of Ringlet Reservoir) was fabricated, and flow velocities were measured. Then, a two-dimensional HEC-RAS was adapted to numerically simulate the hydrodynamics of the annual recurrence intervals of 1, 5, and 100 years in the Ringlet Reservoir. Experimental data acquired at the Hydraulic and Instrumentation Laboratory of the National Water Research Institute of Malaysia (NAHRIM) was used to calibrate and validate the numerical models. The comparison of simulation and experimental results revealed that the water levels in all simulations were consistent. As for the velocity, the results show a comparable trend but with a slight variation of results compared to the experiments due to a few restrictions found in both simulations. These simulation results are deemed significant in predicting future sediment transport control based on hydrodynamics in this reservoir and can be of future reference.
