Secondary canal operation in relation to main canal fluctuation in the Pitsanulok Project, Thailand | |
| Author | Budhathoki, Tark Bahadur |
| Call Number | AIT Thesis no. WA-91-2 |
| Subject(s) | Phitsanulok Irrigation Project Canals--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 | This study focuses on the hydraulic aspect of water management in the tail end lateral (Thabua) of the Phitsanulok Irrigation Project. A problem of unreliable water supply from the main canal to the lateral was conceived before studying the supply - demand situation. Use of mathematical model to describe the hydraulic behavior was found important. The regulated canal was modelled using the Hydrodynamic module of MIKEll, a microcomputer based software developed by the Danish Hydraulic Institute. The model was calibrated using field data. Simulations were carried out to study effects of various operational scenarios. In order to assess the hydraulics of the exiting canal system, all the check gates were calibrated in t he field and the exiting canal profile and cross-sections were obtained from field survey. The computed and observed water levels and discharges are compared at each off take point in order to know water deficiency. Using the data of Thabua head regulator as upstream boundary condition, it is found that the hydraulic conditions do not match with the design needed to meet t he water supply requirements at most off take points of the tail end lateral. This problem is acute in the dry season. Also, for the native paddy crop grown in the wet season, water supply is not enough . Water management methods to alleviate these problems are dealt with and suggestions are made for improved operation. |
| Year | 1991 |
| 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) | Loof, Rainer |
| Examination Committee(s) | Paudyal, Guna Nidhi ;Murty, V.V.N ;Gupta, Ashim Das |
| Scholarship Donor(s) | Government of Austria |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 1991 |