| Author | Boonsong Saeaeng |
| Call Number | AIT Thesis no.WA-85-50 |
| Subject(s) | Scour (Hydraulic engineering)
|
| 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 | This study presents the development of a two dimensional morphological model for bed scouring due to a clear water jet in a shallow lake. The experiment is made in a shallow pool using one size of sand bed material under two different discharges and two different depths. The velocity field and be elevation are measured to check the numerical model. The flow velocities and bed elevations from the numerical model are compared with the experimental results. The existing two-dimensional depth-averaged hydrodynamic model is used to compute the velocities and water surface elevation by solving the continuity and momentum equation of water. For the morphological model, the sediment balance equation and the sediment transport formula are solved through the finite difference method, namely the modified Lax scheme. The Meyer-Peter and Muller bed load equation applied in the computation. Due to nonuniform flow condition and formation of eddies in the scour hole as well as the limit of angle of repose, adjustments are made by using a number of correction factors. The hydrodynamic and morphological model are found to give sufficient prediction for the relevant characteristics of the scour hole. |
| Year | 1985 |
| Type | Thesis |
| School | School of Engineering and Technology (SET) |
| Department | Other Field of Studies (No Department) |
| Academic Program/FoS | Water Resources Research Engineering (WA) |
| Chairperson(s) | Tawatchai Tingsanchali |
| Examination Committee(s) | Suphat Vongvisessomjai ;Wang, Tsan-Wen |
| Scholarship Donor(s) | Thai Government (King's) |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 1985 |