A Study Of Flow Characteristics At Stilling Basin Of Tawau Dam Spillway, Sabah

The dam has a multi of functions, and it is not only built for power generation, but also a flood mitigation purposes. Flowing water should be controlled so that it can reduce the impact on the downstream area. The main objective of this study is to determine the velocity and to positioning of baffl...

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Main Author: Hassan, Siti Amirah Abu
Format: Monograph
Language:English
Published: Universiti Sains Malaysia 2019
Subjects:
Online Access:http://eprints.usm.my/58712/1/A%20Study%20Of%20Flow%20Characteristics%20At%20Stilling%20Basin%20Of%20Tawau%20Dam%20Spillway%2C%20Sabah.pdf
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author Hassan, Siti Amirah Abu
author_facet Hassan, Siti Amirah Abu
author_sort Hassan, Siti Amirah Abu
collection USM
description The dam has a multi of functions, and it is not only built for power generation, but also a flood mitigation purposes. Flowing water should be controlled so that it can reduce the impact on the downstream area. The main objective of this study is to determine the velocity and to positioning of baffle blocks in stilling basin to reduce hydraulic jumps in Tawau Dam spillway model. The physical model of the Tawau Dam spillway was produced by scale 1:30 using perspex so that the characteristic of the flow could be visualized. The equipment used during this study are 'Nixon Streamflow Meter Velocity' and ‘Ultrasonic Flow Meter'. The 'Nixon Streamflow Meter Velocity' is used to measure the velocity of water at each point in the spillway and stilling basin while the 'Ultrasonic Flow Meter' is used to measure the flow rate of supply water to the model. To determine the accuracy of the equipment, the equipment had be ensure reliable set of calibration done data. Through an intensive observation, the flow characteristics in the spillway and stilling basin had been determined. Several graph had been plotted and velocity, pressure and water profile in the spillway as well as in the stilling basin. The study observed two cases of 50 L/s which is equalized to 246.5 m³/s and 100 L/s is 493.0 m³/s. From this study, it can be concluded that the characteristic of flows are depend on the amount of discharges. Therefore, to design baffle blocks for hydraulics jumps, the maximum expected flow should be determined and observed it characteristics.
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spelling usm.eprints-587122023-05-28T04:38:49Z http://eprints.usm.my/58712/ A Study Of Flow Characteristics At Stilling Basin Of Tawau Dam Spillway, Sabah Hassan, Siti Amirah Abu T Technology TA Engineering (General). Civil engineering (General) The dam has a multi of functions, and it is not only built for power generation, but also a flood mitigation purposes. Flowing water should be controlled so that it can reduce the impact on the downstream area. The main objective of this study is to determine the velocity and to positioning of baffle blocks in stilling basin to reduce hydraulic jumps in Tawau Dam spillway model. The physical model of the Tawau Dam spillway was produced by scale 1:30 using perspex so that the characteristic of the flow could be visualized. The equipment used during this study are 'Nixon Streamflow Meter Velocity' and ‘Ultrasonic Flow Meter'. The 'Nixon Streamflow Meter Velocity' is used to measure the velocity of water at each point in the spillway and stilling basin while the 'Ultrasonic Flow Meter' is used to measure the flow rate of supply water to the model. To determine the accuracy of the equipment, the equipment had be ensure reliable set of calibration done data. Through an intensive observation, the flow characteristics in the spillway and stilling basin had been determined. Several graph had been plotted and velocity, pressure and water profile in the spillway as well as in the stilling basin. The study observed two cases of 50 L/s which is equalized to 246.5 m³/s and 100 L/s is 493.0 m³/s. From this study, it can be concluded that the characteristic of flows are depend on the amount of discharges. Therefore, to design baffle blocks for hydraulics jumps, the maximum expected flow should be determined and observed it characteristics. Universiti Sains Malaysia 2019-06-01 Monograph NonPeerReviewed application/pdf en http://eprints.usm.my/58712/1/A%20Study%20Of%20Flow%20Characteristics%20At%20Stilling%20Basin%20Of%20Tawau%20Dam%20Spillway%2C%20Sabah.pdf Hassan, Siti Amirah Abu (2019) A Study Of Flow Characteristics At Stilling Basin Of Tawau Dam Spillway, Sabah. Project Report. Universiti Sains Malaysia, Pusat Pengajian Kejuruteraan Awam. (Submitted)
spellingShingle T Technology
TA Engineering (General). Civil engineering (General)
Hassan, Siti Amirah Abu
A Study Of Flow Characteristics At Stilling Basin Of Tawau Dam Spillway, Sabah
title A Study Of Flow Characteristics At Stilling Basin Of Tawau Dam Spillway, Sabah
title_full A Study Of Flow Characteristics At Stilling Basin Of Tawau Dam Spillway, Sabah
title_fullStr A Study Of Flow Characteristics At Stilling Basin Of Tawau Dam Spillway, Sabah
title_full_unstemmed A Study Of Flow Characteristics At Stilling Basin Of Tawau Dam Spillway, Sabah
title_short A Study Of Flow Characteristics At Stilling Basin Of Tawau Dam Spillway, Sabah
title_sort study of flow characteristics at stilling basin of tawau dam spillway sabah
topic T Technology
TA Engineering (General). Civil engineering (General)
url http://eprints.usm.my/58712/1/A%20Study%20Of%20Flow%20Characteristics%20At%20Stilling%20Basin%20Of%20Tawau%20Dam%20Spillway%2C%20Sabah.pdf
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