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035 _a.b10470347
099 9 _aAIT Thesis no. 863
100 1 _aLee, You Han
245 1 0 _aNumerical approach to the siltation problem in the river
260 _aBangkok :
_bAsian Institute of Technology,
_c1976
300 _a64 p.
490 1 _aThesis ;
_vno. 863
500 _aA thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering at the Asian Institute of Technology, Bangkok, Thailand.
502 _aThesis (M.Eng.) - Asian Institute of Technology, 1976
520 _aA numerical model for water fl ow and sediment transport in a river is made up to analyze the scour and deposition of the river. In the calculation of sediment transport in this model, a median grainsize and distributed grain-sizes can be taken into account separately. Firstly, this model is tested by using the data of the Chao Phya River. Secondly, the effect of grain- size distribution on the change of a river bed elevation is examined with the use of various grain-size distributions under the simplified conditions. It is demonstrated that the calculated results based on distributed grain-size are different from those based on the median grain-size, and that the distribution pattern of grain-size affects the sediment transport and the change of bed configuration.
650 0 _aSilt
700 1 _aNishimura, Hitoshi,
_eChairperson
700 1 _aWatanabe, Akira,
_eExamination Committee
700 1 _aArbhabhirama Anat,
_eExamination Committee
700 0 _aSuphat Vongvisessomjai,
_eExaminaton Committee
700 0 _aPrida Thimakorn,
_eExamination Committee
810 2 _aAsian Institute of Technology.
_tThesis ;
_vno. 863
856 _3Full-Text
_uhttp://203.159.5.9/ait-thesis/detail.php?q=B23679
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