Author/Authors :
Shafiai, S.H Civil and Environmental Engineering Department - Universiti Teknologi PETRONAS, Perak, Malaysia , Sabri, F.N Civil and Environmental Engineering Department - Universiti Teknologi PETRONAS, Perak, Malaysia , Gohari, A Civil and Environmental Engineering Department - Universiti Teknologi PETRONAS, Perak, Malaysia , Liu, H School of Environment - Beijing Normal University, Bei Tai Ping Zhuang, Haidian Qu, Beijing Shi, China , Wei, Y.J Civil and Environmental Engineering Department - Universiti Teknologi PETRONAS, Perak, Malaysia
Abstract :
Headwater accident is a natural phenomenon that occurs in every flow channel, resulting in tremendous
incidents that involve vulnerable lives and destruction of its surroundings. This study focuses on
simulation of potential headwater accidents at Lata Kinjang waterfall (Perak, Malaysia) with the aim of
understanding the behavior of headwater accidents from the hydraulic aspect. By deploying the Lattice
Boltzmann Method (LBM) for Shallow Water Flow with Turbulence Modeling (LABSWETM), a twodimensional
simulation was carried out to investigate the headwater condition of the study area. The
outputs from the LABSWETM model simulation were presented in terms of water height progression and
velocity profile. The water-height results showed a decrease in water level within the flow channel and
an increase in downstream, while the velocity-profile results revealed an increase in velocity at
downstream. Thus, under current hydraulic conditions, Lata Kinjang waterfall has a high potential for
the occurrence of headwater accidents. Nonetheless, this study provide suggestions to mitigate the
phenomenon efficiently.
Keywords :
Headwater Accident , Lattice Boltzmann Method , Shallow Water Flow with Turbulence , Modeling , Simulation , Two-dimensional
