| Author | Timilsena, Janak |
| Call Number | AIT Thesis no.IP-97-10 |
| Subject(s) | Irrigation--Nepal--Management
|
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Civil Engineering |
| Publisher | Asian Institute of Technology |
| Series Statement | Thesis ; no. IP-97-10 |
| Abstract | The work is mathematical and hydraulic approach for irrigation system management.
The mathematical model based on unconstrained minimization is incorporated in an unsteady
flow model. The combined model is used to obtain the optimal operation rules under the
different inflow condition for the considered network. The evaluation function is also
developed for irrigation system in terms of deficit minimization. The combined hydraulic
model and mathematical model is applied in the pilot scheme of Narayani Irrigation
Development Project with six offtakes and five check structures. Decision variables
considered to minimize the deficit are interval time, operation delay for second check
structure, operation delay for third check structure, operation delay for fourth check structure
and operation delay for fifth check structure. In the analysis, three different months of having
very low average flow, average flow, maximum flow are considered to have a clear picture of
gate setting operation policies under different situation. The result shows that the optimal
interval time is short in low flow condition and high in high flow condition. Fmther the
application of the hydraulic model alone is done to get the gate opening chart under the
different steady discharge to maintain the full supply level in the main canal. |
| Year | 1997 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. IP-97-10 |
| Type | Thesis |
| School | School of Civil Engineering |
| Department | Department of Civil and Infrastucture Engineering (DCIE) |
| Academic Program/FoS | Infrastructure Planning and Management (IP) |
| Chairperson(s) | Fujiwara, Okitsugu; |
| Examination Committee(s) | Kubo, Naritaka;Mmthy, V. V .N; |
| Scholarship Donor(s) | Royal Danish Embassy/DANIDA, Nepal; |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 1997 |