000			02972nam a2200421 4500
005			20260817162428.0
008			120698 th eng
035			_a.b10082013
099		9	_aAIT Thesis no.WA-90-20
100	0		_aLe Dinh Hong
245	1	0	_aAnalysis of scour process downstream of a sluice
260			_aBangkok : _bAsian Institute of Technology, _c1990
300			_a59 p.
490	1		_aThesis ; _vno. WA-90-20
500			_aA thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Engineering and Technology
502			_aThesis (M.Eng.) - Asian Institute of Technology, 1990
520			_aThis study presents a semi-theoretical approach to predict the bed scouring downstream of a sluice. Firstly, based on the fact that the scour hole shape possesses a similarity profile in the progressive stage, a semi-theoretical approach to analyze the evolution of local scour is proposed on the basis of the transformed sediment continuity equation and the non-equilibrium sediment transport equation. A proposed model was calibrated by available data in the literature and compared with experimental data. Secondly, the Strip Integral Method used to calculate the velocity field, water surface, decay of maximum velocity, growth of boundary layer thickness, bed shear stress of the flow downstream of a sluice under different initial hydraulic conditions (gate opening, Froude members, tailwater depths ) by solving simultaneously the continuity equation and the boundary layer equation. The computed results are then compared to the available experimental data. An attempt was made to use the results of the Strip Integral Method to calculate the flow field over a rigid apron.
650		0	_aScour (Hydraulic engineering)
700	1		_aAkiyama, Juichiro, _eChairperson
700	0		_aSuphat Vongvisessomjai, _eExamination Committee
700	0		_aTawatchai Tingsanchali, _eExamination Committee
710	2		_aThe Government of Australia, _eScholarship Donor
810	2		_aAsian Institute of Technology. _tThesis ; _vno. WA-90-20
856			_3Full-Text _uhttp://203.159.5.9/ait-thesis/detail.php?q=B18598
907			_a.b10082013 _bmnait _cs
902			_a240410
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945			_lmnait
945			_lmnarc
945			_lmnait
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942			_c40
942			_c20
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