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035 _a.b10135261
099 9 _aAIT Thesis no.742
100 1 _aHuang, Tsong-shih
245 1 0 _aCharacteristics of wave transformation in Da Nang bay
260 _aBangkok :
_bAsian Institute of Technology,
_c1975
300 _a88 p.
490 1 _aThesis ;
_vno. 742
500 _aA thesis submitted for the partial fulfillment of the requirements for the degree of Master of Engineering in the Asian Institute of Technology, Bangkok, Thailand.
502 _aThesis (M.Eng.) - Asian Institute of Technology, 1975
520 _aIn this study three hydraulic models were constructed to study the characteristics of waves propagating in Da Nang Bay and current variation in the vicinity of deep water terminal. From which the main source of the disturbance that caused the undesirable wave condition in the harbour area were determined. Succeedingly, appropriate means to attenuate wave condition in the harbour area were proposed. The first model was made to check the reflecting power of the rocky coastline north of Point Isabella. The results showed that MICHE's expressions were applicable to varying slope bottom even for the case of oblique incidence, if equivalent bottom slope was defined and appropriate value of intrinsic reflection coefficient was given. The second model was built to study the characteristics of refracting wave around Ben-Dao-Tien-Sa headland. Then, the effective ness of several breakwater of various combinations of lengths, locations and orientations were tested. From the results, a design curve of effectiveness of breakwaters was presented for designing purpose. It was also indicated that the existing theoretical solution of diffraction process was applicable to practical engineering purpose, if the bottom topography property was properly determined. The third model was made to check the effectiveness of the proposed breakwater on the current created by the river discharge in the vicinity of deep water terminal. It was observed that the current was not much changeo in most of the harbour area. The results, although not sufficient, provide a guide to assess the change of sediment deposition in the harbour area.
650 0 _aWaves
650 0 _aOcean waves
700 1 _aSuphat Vongvisessomjai,
_eChairperson
700 1 _aAckermann, Norbert L. ,
_eExamination Committee
700 1 _aShi-igai, Hiroyoshi,
_eExamination Committee
700 1 _aNishimura, Hitoshi,
_eExamination Committee
700 0 _aPrida Thimakorn,
_eExamination Committee
810 2 _aAsian Institute of Technology.
_tThesis ;
_vno. 742
856 _3Full-Text
_uhttp://203.159.5.9/ait-thesis/detail.php?q=B23996
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