000			03211nam a2200433 4500
005			20260817162531.0
008			150698 th eng
035			_a.b10083649
099		9	_aAIT Thesis no. WA-91-4
100	0		_aChatchai Jothityangkoon
245	1	0	_aAnalytical model of deformation of a submerged dike along a channel bed
260			_aBangkok : _bAsian Institute of Technology, _c1991
300			_a107 p.
490	1		_aThesis ; _vno. WA-91-4
500			_aA thesis submitted in partial fulfillment of the requirement for the degree of Master of Engineering, School of Engineering and Technology
502			_aThesis (M.Eng.) - Asian Institute of Technology, 1991
520			_aAn analytical model is developed to predict deformation of a submerged dike due to flow over a fixed bed channel. The governing equations of the model consist of the continuity and momentum equations of flow, and of sediment transport. The governing equations are combined and rewritten in form of a wave equation. The wave equation is solved by using Laplace Transformation considering the effect of angle of repose at downstream front of the submerged dike and subsidence of bed wave. The input data for the analytical model are the bed height-time curve at the upstream end and the flow condition at the station under prediction. The solutions are determined by summation solutions of deformed bed height-time curves of rectangles representing the histogram of the input bed height-time curves. The analytical solutions are compared with the data obtained from the experiments in this study. Both bed load and total load are considered. It is found that the solution of this analytical model provide an accurate prediction in the region near to the initial location of submerged dike for Fr=0.25. When 0.25<Fr~0.40, the model provides a good prediction throughout a larger distance from the initial location of submerged dike.
650		0	_aWater resources development
650		0	_aHydraulics
650		0	_aChannels (Hydraulic engineering)
700	0		_aTawatchai Tingsanchali, _eChairperson
700	1		_aGupta, Ashim Das, _eExamination Committee
700	1		_aShibayama, Tomoya, _eExamination Committee
710	2		_aThe Government of Japan, _eScholarship Donor
810	2		_aAsian Institute of Technology. _tThesis ; _vno. WA-91-4
856			_3Full-Text _uhttp://203.159.5.9/ait-thesis/detail.php?q=B17740
907			_a.b10083649 _bmnait _cs
902			_a240410
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