DEVELOPMENT OF SEDIMENT TRANSPORT MODEL AND ITS APPLICATION TO SONGKHLA LAKE BASIN

In the past few decades, rapid population growth in Thailand has resulted in excess utilization of natural resources and degradation of environmental quality. Deforestation in sloping areas for agricultural and residential purposes has resulted in soil erosion from deforested areas with subsequent...

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Main Authors: Yoyrurob, S., Liengcharernsit, W.
Format: Other
Language:English
Published: LOWLAND TECHNOLOGY INTERNATIONAL Vol. 13, No. 2, 25-34, December 2011 2016
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Online Access:http://kb.psu.ac.th/psukb/handle/2016/15014
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Institution: Prince of Songkhla University
Language: English
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spelling th-psu.2016-150142021-05-17T11:11:55Z DEVELOPMENT OF SEDIMENT TRANSPORT MODEL AND ITS APPLICATION TO SONGKHLA LAKE BASIN Yoyrurob, S. Liengcharernsit, W. คุณภาพสิ่งแวดล้อม In the past few decades, rapid population growth in Thailand has resulted in excess utilization of natural resources and degradation of environmental quality. Deforestation in sloping areas for agricultural and residential purposes has resulted in soil erosion from deforested areas with subsequent sediment transport and deposition in receiving water bodies. In order to evaluate the significance of this problem, a mathematical model is developed to simulate sediment transport phenomena in a receiving water body. In model development, total sediment transport is classified as bedload transport and suspended load transport, which result in two interrelated transport models. Threedimensional mass balance equation is used as a basic governing equation for suspended load transport model, whereas two-dimensional mass balance equation is used as a basic governing equation for the bedload transport model. The finite element method is used to solve these governing equations. Since sediment grain size and specific gravity are important factors affecting sediment transport either in the form of bedload or suspended load, the simulation models are developed for each group of sediment grain size and specific gravity, and then the simulated sediment concentrations of various groups are combined to obtain spatial distribution of total sediment concentrations at each time step. The inflow sediment along the boundary of water body is classified into corresponding groups based on their grain size and specific gravity. The developed model is applied to simulate sediment transport pattern in Songkhla Lake which is one of the most important water resources in Southern Thailand. 2016-02-26T02:16:47Z 2021-05-17T11:11:54Z 2016-02-26T02:16:47Z 2021-05-17T11:11:54Z 2554 Other http://kb.psu.ac.th/psukb/handle/2016/15014 en_US application/pdf LOWLAND TECHNOLOGY INTERNATIONAL Vol. 13, No. 2, 25-34, December 2011
institution Prince of Songkhla University
building Khunying Long Athakravi Sunthorn Learning Resources Center
continent Asia
country Thailand
Thailand
content_provider Khunying Long Athakravi Sunthorn Learning Resources Center
collection PSU Knowledge Bank
language English
topic คุณภาพสิ่งแวดล้อม
spellingShingle คุณภาพสิ่งแวดล้อม
Yoyrurob, S.
Liengcharernsit, W.
DEVELOPMENT OF SEDIMENT TRANSPORT MODEL AND ITS APPLICATION TO SONGKHLA LAKE BASIN
description In the past few decades, rapid population growth in Thailand has resulted in excess utilization of natural resources and degradation of environmental quality. Deforestation in sloping areas for agricultural and residential purposes has resulted in soil erosion from deforested areas with subsequent sediment transport and deposition in receiving water bodies. In order to evaluate the significance of this problem, a mathematical model is developed to simulate sediment transport phenomena in a receiving water body. In model development, total sediment transport is classified as bedload transport and suspended load transport, which result in two interrelated transport models. Threedimensional mass balance equation is used as a basic governing equation for suspended load transport model, whereas two-dimensional mass balance equation is used as a basic governing equation for the bedload transport model. The finite element method is used to solve these governing equations. Since sediment grain size and specific gravity are important factors affecting sediment transport either in the form of bedload or suspended load, the simulation models are developed for each group of sediment grain size and specific gravity, and then the simulated sediment concentrations of various groups are combined to obtain spatial distribution of total sediment concentrations at each time step. The inflow sediment along the boundary of water body is classified into corresponding groups based on their grain size and specific gravity. The developed model is applied to simulate sediment transport pattern in Songkhla Lake which is one of the most important water resources in Southern Thailand.
format Other
author Yoyrurob, S.
Liengcharernsit, W.
author_facet Yoyrurob, S.
Liengcharernsit, W.
author_sort Yoyrurob, S.
title DEVELOPMENT OF SEDIMENT TRANSPORT MODEL AND ITS APPLICATION TO SONGKHLA LAKE BASIN
title_short DEVELOPMENT OF SEDIMENT TRANSPORT MODEL AND ITS APPLICATION TO SONGKHLA LAKE BASIN
title_full DEVELOPMENT OF SEDIMENT TRANSPORT MODEL AND ITS APPLICATION TO SONGKHLA LAKE BASIN
title_fullStr DEVELOPMENT OF SEDIMENT TRANSPORT MODEL AND ITS APPLICATION TO SONGKHLA LAKE BASIN
title_full_unstemmed DEVELOPMENT OF SEDIMENT TRANSPORT MODEL AND ITS APPLICATION TO SONGKHLA LAKE BASIN
title_sort development of sediment transport model and its application to songkhla lake basin
publisher LOWLAND TECHNOLOGY INTERNATIONAL Vol. 13, No. 2, 25-34, December 2011
publishDate 2016
url http://kb.psu.ac.th/psukb/handle/2016/15014
_version_ 1703979098871693312