Calibrating a hec-ras model of broad crested weir as inline structure using open channel flume flow method and its application for sediment transport

HEC-RAS have been used for almost 20 years and up till today HEC-RAS has difficulty in the stimulation of a steep channel or stream. Besides that, many users around the world find instability numerical unsteady flow when using HEC-RAS. Confusion may arise among the engineers whether this software is...

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Main Author: Ong, Ming Zhang
Format: Undergraduates Project Papers
Language:English
Published: 2014
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Online Access:http://umpir.ump.edu.my/id/eprint/12429/1/FKASA%20-%20ONG%20MING%20ZHANG.PDF
http://umpir.ump.edu.my/id/eprint/12429/
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spelling my.ump.umpir.124292021-07-27T04:13:45Z http://umpir.ump.edu.my/id/eprint/12429/ Calibrating a hec-ras model of broad crested weir as inline structure using open channel flume flow method and its application for sediment transport Ong, Ming Zhang TC Hydraulic engineering. Ocean engineering HEC-RAS have been used for almost 20 years and up till today HEC-RAS has difficulty in the stimulation of a steep channel or stream. Besides that, many users around the world find instability numerical unsteady flow when using HEC-RAS. Confusion may arise among the engineers whether this software is reliable and appropriate on certain condition. The objective of this study is to compare the results of the water surface profile between HEC-RAS and the experiments in the laboratory. The other main objective of this study is to obtain the appropriate manning value of the open channel in the laboratory. The procedure and the method to collect data with consideration of reliability and feasibility will also be described. The research can be divided into four phases, which are laboratory work, manning value specification, computational work, and analyze results. HEC-RAS software will determine the upstream and downstream water surface profile with different range of discharge and manning value. Once the HEC-RAS and lab experimental result is obtained, comparison is made. Calibration between laboratory experimental result and HEC-RAS's result is to determine whether this software is reliable to be used on certain condition. Prediction of the sediment transport pattern in the upstream and the downstream part of broad crested weir is determined. The duration of HEC-RAS and lab experimental required 2 semesters. From the result and discussion, the appropriate Manning value is 0.009 s/rn"3 with the root mean square error of 0.0165 in at the distance of 2 m from upstream and the sediment transport occurs at the upstream. This research has shows that the HECRAS is still reliable software on these conditions. 2014-06 Undergraduates Project Papers NonPeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/12429/1/FKASA%20-%20ONG%20MING%20ZHANG.PDF Ong, Ming Zhang (2014) Calibrating a hec-ras model of broad crested weir as inline structure using open channel flume flow method and its application for sediment transport. Faculty of Civil Engineering and Earth Resources, Universiti Malaysia Pahang.
institution Universiti Malaysia Pahang
building UMP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Pahang
content_source UMP Institutional Repository
url_provider http://umpir.ump.edu.my/
language English
topic TC Hydraulic engineering. Ocean engineering
spellingShingle TC Hydraulic engineering. Ocean engineering
Ong, Ming Zhang
Calibrating a hec-ras model of broad crested weir as inline structure using open channel flume flow method and its application for sediment transport
description HEC-RAS have been used for almost 20 years and up till today HEC-RAS has difficulty in the stimulation of a steep channel or stream. Besides that, many users around the world find instability numerical unsteady flow when using HEC-RAS. Confusion may arise among the engineers whether this software is reliable and appropriate on certain condition. The objective of this study is to compare the results of the water surface profile between HEC-RAS and the experiments in the laboratory. The other main objective of this study is to obtain the appropriate manning value of the open channel in the laboratory. The procedure and the method to collect data with consideration of reliability and feasibility will also be described. The research can be divided into four phases, which are laboratory work, manning value specification, computational work, and analyze results. HEC-RAS software will determine the upstream and downstream water surface profile with different range of discharge and manning value. Once the HEC-RAS and lab experimental result is obtained, comparison is made. Calibration between laboratory experimental result and HEC-RAS's result is to determine whether this software is reliable to be used on certain condition. Prediction of the sediment transport pattern in the upstream and the downstream part of broad crested weir is determined. The duration of HEC-RAS and lab experimental required 2 semesters. From the result and discussion, the appropriate Manning value is 0.009 s/rn"3 with the root mean square error of 0.0165 in at the distance of 2 m from upstream and the sediment transport occurs at the upstream. This research has shows that the HECRAS is still reliable software on these conditions.
format Undergraduates Project Papers
author Ong, Ming Zhang
author_facet Ong, Ming Zhang
author_sort Ong, Ming Zhang
title Calibrating a hec-ras model of broad crested weir as inline structure using open channel flume flow method and its application for sediment transport
title_short Calibrating a hec-ras model of broad crested weir as inline structure using open channel flume flow method and its application for sediment transport
title_full Calibrating a hec-ras model of broad crested weir as inline structure using open channel flume flow method and its application for sediment transport
title_fullStr Calibrating a hec-ras model of broad crested weir as inline structure using open channel flume flow method and its application for sediment transport
title_full_unstemmed Calibrating a hec-ras model of broad crested weir as inline structure using open channel flume flow method and its application for sediment transport
title_sort calibrating a hec-ras model of broad crested weir as inline structure using open channel flume flow method and its application for sediment transport
publishDate 2014
url http://umpir.ump.edu.my/id/eprint/12429/1/FKASA%20-%20ONG%20MING%20ZHANG.PDF
http://umpir.ump.edu.my/id/eprint/12429/
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