1 AIT Asian Institute of Technology

Flood plain modelling

AuthorTawatchai Tingsanchali
Call NumberAIT Diss. no.D11
Subject(s)Floodplains
Floods

NoteA dissertation submitted in partial fulfil ment of the requirements for the Degree of Doctor of Engineering at the Asian Institute of Technology, Bangkok., Thailand.
PublisherAsian Institute of Technology
AbstractWhen overbank flows in a river spread out over a flood p1ain,an accurate hydrodynamic description is difficult. An analysis or under— standing of overbank flows is important for at least the following reasons: i) prediction of effects of extreme floods ii) effects of flood plain modification Two simple models of flood plain are presented and shown to enable flood plain modifications and effects of extreme floods to be determined. The models were checked by comparing them to a flood plain that consisted of channels and ponds that were precisely described. The hydrodynamic description of the flow in this channel and pond system was determined through a mathematical model which can completely describe the river flood plain flow. A portion of this description is described by the hydrodynamics of flow in the main channel. When the river geometry is complicated, assumptions regarding flow conditions have previ0usly been made which neglect some of the dynamic characteristics that are important. A derivation of the complete hydrodynamical relationship including complications formed by variations in geometry are developed. The simple models were then subjected to the same inputs and their responses were compared to the complete hydrodynamic description. Satisfactory results were obtained from those simple models.
Year1974
Corresponding Series Added EntryAsian Institute of Technology. Dissertation ; no. D11
TypeDissertation
SchoolAIT Publication (Year <=1978)
DepartmentOther Field of Studies (No Department)
Academic Program/FoSDissertation (D) (Year <=1978)
Chairperson(s)Ackermann, Norbert L.;
DegreeThesis (Ph.D.) - Asian Institute of Technology, 1974


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