Lee, You Han creator Nishimura, Hitoshi Chairperson Watanabe, Akira Examination Committee Arbhabhirama Anat Examination Committee Suphat Vongvisessomjai Examinaton Committee Prida Thimakorn Examination Committee text th Bangkok Asian Institute of Technology 1976 monographic eng

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64 p. A 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. A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering at the Asian Institute of Technology, Bangkok, Thailand. Thesis (M.Eng.) - Asian Institute of Technology, 1976 Silt Asian Institute of Technology. http://203.159.5.9/ait-thesis/detail.php?q=B23679 http://203.159.5.9/ait-thesis/detail.php?q=B23679 140198 20260818170240.0