Flow and sediment matrix for the formation of midland point bars in sand bed channel / Duratul Ain Tholibon

A large number of studies, both theoretical and experimental have been devoted to understanding the physical mechanisms underlying the bar formation. Numerous data on bar formation have been accumulated yet the methods to predict bar geometry, especially bar height are still insufficient. This resea...

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Main Author:	Duratul Ain Tholibon
Format:	Thesis
Language:	English
Published:	2016
Online Access:	https://ir.uitm.edu.my/id/eprint/17772/2/TP_DURATUL%20AIN%20THOLIBON%20EC%2016_5.pdf
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id	my-uitm-ir.17772
record_format	uketd_dc
spelling	my-uitm-ir.177722019-03-05T06:03:18Z Flow and sediment matrix for the formation of midland point bars in sand bed channel / Duratul Ain Tholibon 2016 Duratul Ain Tholibon A large number of studies, both theoretical and experimental have been devoted to understanding the physical mechanisms underlying the bar formation. Numerous data on bar formation have been accumulated yet the methods to predict bar geometry, especially bar height are still insufficient. This research aims to investigate the parameters that promote bar formation in term of bar height. Investigation was carried out on an erodible sand bed channel using a large-scale physical river model. Study have included various hydraulic and sediment characteristics with steady flow rates and sediment supply. There are four matrices of flow rate and channel width with other variables, namely grains size and bed slope which were kept constant. A relationship between dimensionless bar heights with the respective independent parameters has been established. Bar profile development was generated using Surfer, of which 3D elevation plots are given. Analysis has included the discussion on a significant difference of planform view for each experimental condition, trends in volume change along the channel, widening ratio and centreline bed elevation profile along the longitudinal distance. Both experimental and historical data were used to develop the empirical model. Model development involved selection of parameters through review of established models, dimensional analysis to check on the homogeneity of the model and statistical analysis. Derived empirical model has been validated using a different set of data from previous studies. 2016 Thesis https://ir.uitm.edu.my/id/eprint/17772/ https://ir.uitm.edu.my/id/eprint/17772/2/TP_DURATUL%20AIN%20THOLIBON%20EC%2016_5.pdf text en public phd doctoral Universiti Teknologi MARA Faculty of Civil Engineering
institution	Universiti Teknologi MARA
collection	UiTM Institutional Repository
language	English
description	A large number of studies, both theoretical and experimental have been devoted to understanding the physical mechanisms underlying the bar formation. Numerous data on bar formation have been accumulated yet the methods to predict bar geometry, especially bar height are still insufficient. This research aims to investigate the parameters that promote bar formation in term of bar height. Investigation was carried out on an erodible sand bed channel using a large-scale physical river model. Study have included various hydraulic and sediment characteristics with steady flow rates and sediment supply. There are four matrices of flow rate and channel width with other variables, namely grains size and bed slope which were kept constant. A relationship between dimensionless bar heights with the respective independent parameters has been established. Bar profile development was generated using Surfer, of which 3D elevation plots are given. Analysis has included the discussion on a significant difference of planform view for each experimental condition, trends in volume change along the channel, widening ratio and centreline bed elevation profile along the longitudinal distance. Both experimental and historical data were used to develop the empirical model. Model development involved selection of parameters through review of established models, dimensional analysis to check on the homogeneity of the model and statistical analysis. Derived empirical model has been validated using a different set of data from previous studies.
format	Thesis
qualification_name	Doctor of Philosophy (PhD.)
qualification_level	Doctorate
author	Duratul Ain Tholibon
spellingShingle	Duratul Ain Tholibon Flow and sediment matrix for the formation of midland point bars in sand bed channel / Duratul Ain Tholibon
author_facet	Duratul Ain Tholibon
author_sort	Duratul Ain Tholibon
title	Flow and sediment matrix for the formation of midland point bars in sand bed channel / Duratul Ain Tholibon
title_short	Flow and sediment matrix for the formation of midland point bars in sand bed channel / Duratul Ain Tholibon
title_full	Flow and sediment matrix for the formation of midland point bars in sand bed channel / Duratul Ain Tholibon
title_fullStr	Flow and sediment matrix for the formation of midland point bars in sand bed channel / Duratul Ain Tholibon
title_full_unstemmed	Flow and sediment matrix for the formation of midland point bars in sand bed channel / Duratul Ain Tholibon
title_sort	flow and sediment matrix for the formation of midland point bars in sand bed channel / duratul ain tholibon
granting_institution	Universiti Teknologi MARA
granting_department	Faculty of Civil Engineering
publishDate	2016
url	https://ir.uitm.edu.my/id/eprint/17772/2/TP_DURATUL%20AIN%20THOLIBON%20EC%2016_5.pdf
_version_	1783733596067987456

Flow and sediment matrix for the formation of midland point bars in sand bed channel / Duratul Ain Tholibon

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