Transport of sediment in the presence of stable clast

Presence of surface bedformin the formof stable clast is believed to be exist 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 puzzl...

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Published in:River Sedimentation - Proceedings of the 13th International Symposium on River Sedimentation, ISRS 2016
Main Author: Sulaiman M.S.; Zainal Abidin R.; Sinnakaudan S.K.
Format: Conference paper
Language:English
Published: CRC Press/Balkema 2017
Online Access:https://www.scopus.com/inward/record.uri?eid=2-s2.0-85016577566&partnerID=40&md5=7d528ae0003ad7dae33bf2ddf87df2c7
id 2-s2.0-85016577566
spelling 2-s2.0-85016577566
Sulaiman M.S.; Zainal Abidin R.; Sinnakaudan S.K.
Transport of sediment in the presence of stable clast
2017
River Sedimentation - Proceedings of the 13th International Symposium on River Sedimentation, ISRS 2016



https://www.scopus.com/inward/record.uri?eid=2-s2.0-85016577566&partnerID=40&md5=7d528ae0003ad7dae33bf2ddf87df2c7
Presence of surface bedformin the formof stable clast is believed to be exist 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 flowfields and turbulence statistics at a very local scale leads to the prediction of occurrence of bed load transport using probability approach. Bed load and turbulence data were physically measured at mountainous region having diverge surface bedform in its presence. Understanding transport occurrence at finer scale is vital for instream rehabilitation, river restoration and installation of sediment sampler on river beds. However, treating the dynamics of flowand 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. Wide ranges of data from King et al. (2004) are used for further investigation at reach scale solution. The presence of stable is verified from previous report and morphodynamic analysis. Transport of 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 sediment in the presence of stable clast. This equation alleviates the dependence on wide range of particle size as previously demonstrated by past model. © 2017 Taylor & Francis Group, London.
CRC Press/Balkema

English
Conference paper

author Sulaiman M.S.; Zainal Abidin R.; Sinnakaudan S.K.
spellingShingle Sulaiman M.S.; Zainal Abidin R.; Sinnakaudan S.K.
Transport of sediment in the presence of stable clast
author_facet Sulaiman M.S.; Zainal Abidin R.; Sinnakaudan S.K.
author_sort Sulaiman M.S.; Zainal Abidin R.; Sinnakaudan S.K.
title Transport of sediment in the presence of stable clast
title_short Transport of sediment in the presence of stable clast
title_full Transport of sediment in the presence of stable clast
title_fullStr Transport of sediment in the presence of stable clast
title_full_unstemmed Transport of sediment in the presence of stable clast
title_sort Transport of sediment in the presence of stable clast
publishDate 2017
container_title River Sedimentation - Proceedings of the 13th International Symposium on River Sedimentation, ISRS 2016
container_volume
container_issue
doi_str_mv
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85016577566&partnerID=40&md5=7d528ae0003ad7dae33bf2ddf87df2c7
description Presence of surface bedformin the formof stable clast is believed to be exist 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 flowfields and turbulence statistics at a very local scale leads to the prediction of occurrence of bed load transport using probability approach. Bed load and turbulence data were physically measured at mountainous region having diverge surface bedform in its presence. Understanding transport occurrence at finer scale is vital for instream rehabilitation, river restoration and installation of sediment sampler on river beds. However, treating the dynamics of flowand 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. Wide ranges of data from King et al. (2004) are used for further investigation at reach scale solution. The presence of stable is verified from previous report and morphodynamic analysis. Transport of 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 sediment in the presence of stable clast. This equation alleviates the dependence on wide range of particle size as previously demonstrated by past model. © 2017 Taylor & Francis Group, London.
publisher CRC Press/Balkema
issn
language English
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record_format scopus
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