000			03872nam a2200433 4500
005			20260818170254.0
008			150698 th eng
035			_a.b10470980
099		9	_aAIT Thesis no. WA-91-6
100	1		_aHaque, A. M. Aminul
245	1	0	_aNumerical model of wave field in a bay
260			_aBangkok : _bAsian Institute of Technology, _c1991
300			_a85, A-3, B-24 p.
490	1		_aThesis ; _vno. WA-91-6
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, 1991
520			_aThe prediction of nearshore wave parameters from the lrnowledge of deepwater wave informations has immense practical applications; specially for complicated bottom topography and structural geometry, for which wave deformation due to combined refraction, diffraction, reflection and breal<ing exists. A numerical model is presented to generate wave transformation in those bodies of water where bathymetrlc effects are extremely important and where conventional methods such as ray tracing or those using energy equations can not worl< properly. The technique presented is based upon the first model to locate the breal<erline presented by Numano in Japan in 1988. This model was developed on the theoretical basis of time dependent mild slope equations and the prime purpose was to locate the breal<erline. The model did not take into account the oblique incident wave . This model has been modified and extended to apply in larger and complex area of interest to locate breal<erline, generate breal<er characteristics, estimate wave-induced longshore sediment transport from the directional energy flux distributions, predict (approxima t ely) wave height beyond surfzone and calculate the magnitude and direction of near bottom orbital velocity in the study area without tal<ing into account the dissipation due to brealcing as well as bottom friction. The model has been applied to real world problem of Bang Tao Bay in Phulcet, Bangkok, Thailand, to investigate the effect of offshore tin mining which created deep holes nearshore . The results obtained draw t he conclusion that the flow pattern is greatly affected due to refraction and reflection. Greater energy flux as well as steeper energy gradient are generated causing severe erosion.
650		0	_aWaves _xMathematical models
700	0		_aSuphat Vongvisessomjai, _eChairperson
700	0		_aTawatchai Tingsanchali, _eExamination Committee
700	0		_aShibayama, Tomoya, _eExamination Commitee
710	2		_aThe Government of the Netherlands, _eScholarship Donor
810	2		_aAsian Institute of Technology. _tThesis ; _vno. WA-91-6
856			_3Full-Text _uhttp://203.159.5.9/ait-thesis/detail.php?q=B17742
907			_a.b10470980 _bmnait _cs
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