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008 051198s1981 th uzm rtt 00| a1eng d
035 _a.b10598674
099 9 _aAIT Diss. no. WA-81-02
100 1 _aSivakumaran, Nagalingam Subramaniam
245 1 0 _aShallow-flow over curved beds
260 _aBangkok :
_bAsian Institute of Technology,
_c1981
300 _a72 p.
490 1 _aDissertation ;
_vno. WA-81-02
500 _aA Dissertation submitted in partial fulfilment of the requirement for the Degree of Doctor of Engineering, School of Engineering and Technology
502 _aThesis (Ph.D.) - Asian Institute of Technology, 1981
520 _aGeneral equations are derived for shallow- flow over a two-dimensionally curved bed; the Saint-Venant and the recent Dressler equations are recovered as special cases. The concept of Froude number is generalised, and the validity of the Dressler equations discussed. The Dressler equations are solved for steady flow, including transition profiles. Application of these equations to a tested spillway crest reproduces its head-discharge relationship and the pressure distribution in remarkable agreement with the experimental data. Predictions for a spillway toe also compare with earlier theory and experiment. Finally, new experiments were carried out for steady flow over a symmetric and an unsymmetrical profile ,and the Dressler equations are found to be applicable in the range -2 < Kh < 0.54 (K denotes bed curvature, denotes the flow depth normal to the bed) for steady frictionless flow over curved beds. Roll waves in curved bed open channel s and formal extension of the Dressler equations to higher order are briefly discussed in appendices.
650 0 _aMultiphase flow
_xMathematical models
700 1 _aBanks, Robert B.,
_eChairperson
700 0 _aTawatchai Tingsanchali,
_eCo-Chairperson
700 1 _aHosking, Roger J.,
_eExamination Committee
700 1 _aArbhabhirama Anat,
_eExamination Committee
710 2 _aHis Majesty the King of Thailand,
_eScholaship Donor
810 2 _aAsian Institute of Technology.
_tDissertation ;
_vno. WA-81-02
856 _3Full-Text
_uhttp://203.159.5.9/ait-thesis/detail.php?q=B21425
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