000			03031nam a2200421 4500
005			20260818170304.0
008			170698 th eng
035			_a.b10471261
099		9	_aAIT Thesis no. WA-92-23
100	1		_aQin, Huimin
245	1	0	_aNumerical simulation of sand terrace formation at a river mouth
260			_aBangkok : _bAsian Institute of Technology, _c1992
300			_a86 leaves
490	1		_aThesis ; _vno. WA-92-23
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, 1992
520			_aIn this study the results of numerical simulation of sand terrace formation in front of a river mouth are presented. A finite difference leap-frog scheme is applied as a method for the time integration procedure. A process of sand terrace formation in the conditions of different jetty length and steep slope longshore bed as well as constant in time solid and fluvial runoff have been investigated. The flow velocities and bed elevations from the numerical model are compared with the experimental results. The available two-dimentional depth-averaged hydrodynamic model is used to compute the velocity field and water surface elevation by solving the continuity and momentum equation of flow. For the morphological model, the sediment balance equation and sediment transport formula are solved to simulate the morphological process. Besides employing uniform schematization, a mixed schematization in the computation is attempted. The hydrodynamic and morphological model are found to give good prediction for the relevant geometrical shape of sand terrace with respect to time.
650		0	_aSediment transport _xMathematical models
650		0	_aHydrodynamics _xSimulation methods
700	1		_aTanaka, Hitoshi, _eChairpeson
700	0		_aSuphat Vongvisessomjai, _eExamination Committee
700	0		_aTawatchai Tingsanchali, _eExamintion Committee
710	2		_aCIDA, _eScholarship Donor
810	2		_aAsian Institute of Technology. _tThesis ; _vno. WA-92-23
856			_3Full-Text _uhttp://203.159.5.9/ait-thesis/detail.php?q=B17285
907			_a.b10471261 _bmnait _cs
902			_a240402
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