| Author | Phairot Chatanantavet |
| Call Number | AIT Thesis no. WM-00-08 |
| Subject(s) | Hydraulic structures--Mathematical models
|
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of
Master of Engineering, School of Engineering and Technology |
| Publisher | Asian Institute of Technology |
| Abstract | Scouring process near hydraulic structures have been studied for long time ago because of
its effect on the stability of the structures. Not until recently did both the breakthroughs of
computer and numerical technique amelioration have emerged. Accordingly, the numerical
models of morphology have been investigated dramatically instead of physical models that
have dozens of limitations. However, an analytical model is still needed to develop to obtain
thorough insight into the physics of morphological processes together with the development
of numerical models. After the analytical models are consummately developed any complex
problem can be quantified readily because of good applicability of their solutions.
In the present study, morphological models in 2-D depth-averaged and 2-D widthaveraged were developed through analytical manner. Only the case of sediment bedload was
considered. Two-dimensional hydrodynamic models for both depth-averaged and widthaveraged computation were adapted from the Goertler solution (1942) to compute velocity
fields. After that, the equations from the hydrodynamic model were then utilized in order to
apply into the equation of non-equilibrium sediment transport and the sediment transport
formulae to implement morphological models. The computed results of both the
hydrodynamic models and the morphological models were compared with the experimental,
numerical, and prototype data. The agreement was found satisfactory. |
| Year | 2001 |
| Type | Thesis |
| School | School of Engineering and Technology (SET) |
| Department | Department of Civil and Infrastucture Engineering (DCIE) |
| Academic Program/FoS | Water Engineering and Management (WM) |
| Chairperson(s) | Suphat Vongvisessomjai |
| Examination Committee(s) | Tawatchai Tingsanchali ; Sutat Weesakul |
| Scholarship Donor(s) | The Government of Denmark (Danida) |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 2001 |