The Study of Mengkuang Dam`s Chute Spillway by Physical Modeling

Abstract:

This paper presents a case study of water flow over the chute spillway type for the Mengkuang Dam expansion project. It governs the surplus water from the dam to the downstream area. However, flows were driven by gravity along the curvature and vertical direction which cause unpredictable flow direction along the chute. Its cause’s thickening of turbulence, changing the velocity, pressure and depth of the water along the spillway. This study was simulated using a physical model with geometrical scale of 1:20. After some test conducted on the spillway, eleven locations on the spillway were selected for the test based on observation for the study. For each location, there were five points in a line with equal distance. Manometers were installed on six locations of the spillway. The water level, velocity and pressure were measured at every point for 100, 1000, 10000 years and PMF design discharge of the spillway. Several critical occurrences on the spillway such as turbulent and cross-wave were presented in this paper.

• Periodical: Applied Mechanics and Materials (Volume 802)
• Pages: 63-67
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.802.63
• Online since: October 2015
• Authors: Che Mohamad Amirus Shafiq Che Ismail, Mohd Remy Rozainy Mohd Arif Zainol*
• Keywords: Physical Model, Pressure, Velocity, Water Level

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DOI: 10.1007/bf02716893

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