Transport of bed load sediment in the presence of stable clast / Mohd Sofiyan Sulaiman

Surface bedform in the form of stable clast is deduced to be presence at micro-scale. Stable clast is believed to modify the flow field and provide sink and source for incoming sediment particles. The dynamics of flow pattern and bed load rate in the presence of stable clast are always puzzling due...

Full description

Saved in:

Bibliographic Details
Main Author:	Sulaiman, Mohd Sofiyan
Format:	Thesis
Language:	English
Published:	2016
Subjects:	Engineering instruments, meters, etc Industrial instrumentation Engineering instruments meters etc. Industrial instrumentation
Online Access:	https://ir.uitm.edu.my/id/eprint/27847/1/TP_MOHD%20SOFIYAN%20SULAIMAN%20EC%2016_5.pdf
Tags:	Add Tag No Tags, Be the first to tag this record!

id	my-uitm-ir.27847
record_format	uketd_dc
spelling	my-uitm-ir.278472022-06-23T02:42:42Z Transport of bed load sediment in the presence of stable clast / Mohd Sofiyan Sulaiman 2016 Sulaiman, Mohd Sofiyan Engineering instruments, meters, etc. Industrial instrumentation Engineering machinery, tools, and implements Surface bedform in the form of stable clast is deduced to be presence at micro-scale. Stable clast is believed to modify the flow field and provide sink and source for incoming sediment particles. The dynamics of flow pattern and bed load rate in the presence of stable clast are always puzzling due to wide range of particle size and presence of roughness elements. Thus, this issue can be treated using two methodological approaches namely local scale and reach scale solutions. Incorporating the flow fields and turbulence statistics at a very local scale leads to the prediction of occurrence of bed load transport using probability approach. The binary model of dimensionless velocities for ejection and local bed shear using TKEw’ gave better prediction among other models. Almost 80% of the bed load mechanism (whether occur or not) can be predicted by this proposed model. Understanding transport occurrence at finer scale is vital for in-stream rehabilitation, river restoration and installation of sediment sampler on river beds. However, treating the dynamics of flow and bed load at reach scale is significantly differed from local scale approach. Transport of sediment in the presence of stable clast at reach scale is best equipped using continuous transport prediction or reach-averaged bed load model. Transport of bed load sediment using existing prediction model postulate the less suitability and a need for modification. Thus, a similarity approach is used to develop the bed load model which can predict the bed load transport at reach scale. This new equation is successfully predicting the transport of bed load sediment in the presence of stable clast. Almost 70% of the selected river data portrayed better prediction compared to existing model. This newly proposed model make the full use of particle densimetric Froude number as the main predictor variable. 2016 Thesis https://ir.uitm.edu.my/id/eprint/27847/ https://ir.uitm.edu.my/id/eprint/27847/1/TP_MOHD%20SOFIYAN%20SULAIMAN%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
topic	Engineering instruments, meters, etc Industrial instrumentation Engineering instruments meters etc. Industrial instrumentation
spellingShingle	Engineering instruments, meters, etc Industrial instrumentation Engineering instruments meters etc. Industrial instrumentation Sulaiman, Mohd Sofiyan Transport of bed load sediment in the presence of stable clast / Mohd Sofiyan Sulaiman
description	Surface bedform in the form of stable clast is deduced to be presence at micro-scale. Stable clast is believed to modify the flow field and provide sink and source for incoming sediment particles. The dynamics of flow pattern and bed load rate in the presence of stable clast are always puzzling due to wide range of particle size and presence of roughness elements. Thus, this issue can be treated using two methodological approaches namely local scale and reach scale solutions. Incorporating the flow fields and turbulence statistics at a very local scale leads to the prediction of occurrence of bed load transport using probability approach. The binary model of dimensionless velocities for ejection and local bed shear using TKEw’ gave better prediction among other models. Almost 80% of the bed load mechanism (whether occur or not) can be predicted by this proposed model. Understanding transport occurrence at finer scale is vital for in-stream rehabilitation, river restoration and installation of sediment sampler on river beds. However, treating the dynamics of flow and bed load at reach scale is significantly differed from local scale approach. Transport of sediment in the presence of stable clast at reach scale is best equipped using continuous transport prediction or reach-averaged bed load model. Transport of bed load sediment using existing prediction model postulate the less suitability and a need for modification. Thus, a similarity approach is used to develop the bed load model which can predict the bed load transport at reach scale. This new equation is successfully predicting the transport of bed load sediment in the presence of stable clast. Almost 70% of the selected river data portrayed better prediction compared to existing model. This newly proposed model make the full use of particle densimetric Froude number as the main predictor variable.
format	Thesis
qualification_name	Doctor of Philosophy (PhD.)
qualification_level	Doctorate
author	Sulaiman, Mohd Sofiyan
author_facet	Sulaiman, Mohd Sofiyan
author_sort	Sulaiman, Mohd Sofiyan
title	Transport of bed load sediment in the presence of stable clast / Mohd Sofiyan Sulaiman
title_short	Transport of bed load sediment in the presence of stable clast / Mohd Sofiyan Sulaiman
title_full	Transport of bed load sediment in the presence of stable clast / Mohd Sofiyan Sulaiman
title_fullStr	Transport of bed load sediment in the presence of stable clast / Mohd Sofiyan Sulaiman
title_full_unstemmed	Transport of bed load sediment in the presence of stable clast / Mohd Sofiyan Sulaiman
title_sort	transport of bed load sediment in the presence of stable clast / mohd sofiyan sulaiman
granting_institution	Universiti Teknologi MARA
granting_department	Faculty of Civil Engineering
publishDate	2016
url	https://ir.uitm.edu.my/id/eprint/27847/1/TP_MOHD%20SOFIYAN%20SULAIMAN%20EC%2016_5.pdf
_version_	1783734018654601216

Transport of bed load sediment in the presence of stable clast / Mohd Sofiyan Sulaiman

Similar Items