Numerical modelling of dam break wave in open channels : Srinagarind Dam | |
| Author | Peerawat Pumthong |
| Call Number | AIT Thesis no.WA-85-33 |
| Subject(s) | Srinagarind Dam Dam failures--Thailand--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 | The theoretical aspects of a mathematical model to predict the flood hydrograph resulting from a breached dam are presented. The model is composed of two basic elements. the first simulates the outflow hydrograph due to sudden breach of a dam using a hydraulic weir representation of the outflow through the breach to compute the reservoir outflow hydrograph by using a storage routing technique. The second element routes the generated outflow hydrograph through the downstream valley by using an implicit finite difference solution of the complete one dimensional equations of unsteady flow. This model is verified with laboratory data of the U.S. Waterways Experiment Station (WES). In general good agreement between the computed and observed water levels, discharges and arrival time of leading edge is obtained. the model is also applied to an assumed dam breaching condition of Srinagaring dam. After the calibration based on a flood in 1972, the Manning roughness coefficient along the Mae Klong river is applied to study the dam break floods which resulted from the failures of Srinagarind dam. The results from the flash flood propagated downstream show that the flood wave is severely attenuated as it advances downstream due to partial spillage onto the outer flood plains. |
| Year | 1984 |
| 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) | Federal Republic of Germany (DAAD) |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 1984 |