| Author | Nguyen Hong Phuong |
| Call Number | AIT Thesis no.WM-97-08 |
| Subject(s) | Irrigation--Vietnam--Cau River--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. WM-97-08 |
| Abstract | An optimization and simulation has been approached to the irrigation management
planning in an operation irrigation system in dry season to achieve the better water use
efficiency. 'Linear Programming technique has been used to formulate the optimization model
in which the area allocation for each crop and the water allocation are combined. The
hydrodynamic simulation has been applied to check whether the canal capacity is sufficient to
convey or distribute the allocated water.
The optimization model written under the Linear Programming technique is solved by
the simplex method of the HYPER LINDO package running in a PC/486 computer. The
objective of this model is the maximum net benefit for the farmers. The results obtained are
the optimal cropping pattern and the water allocation in the command area. The hydrodynamic
simulation methodology is based on the Saint Venant equations and these equations are solved
by the finite difference method and double sweep technique.
The Cau River Irrigation System of Bae Giang Province, Vietnam is chosen as the
study area. In this system, one secondary canal command area has been concentrated to find
out the optimal cropping pattern and water allocation based on the existing water resource. The
management strategy obtained can be referred to continue the study in the whole system.
The cropping pattern achieved is satisfied all the constraints in which the constraint of
water availability in most important therefore can reduce the water stress which occur in the
existing cropping pattern. The hydrodynamic simulation have shown the appropriate canal
system in aspect of the hydraulic condition for the system water allocation.
The comparison between the water utilization and water availability are esta.blished for
both the existing cropping pattern and the optimal cropping pattern to verify that with the
optimal cropping pattern, the system water use efficiency will be improved. |
| Year | 1998 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. WM-97-08 |
| Type | Thesis |
| School | School of Civil Engineering |
| Department | Department of Civil and Infrastucture Engineering (DCIE) |
| Academic Program/FoS | Water Engineering and Management (WM) |
| Chairperson(s) | Loof, Rainer; |
| Examination Committee(s) | Huynh Ngoc Phien;Kubo, Naritaka; |
| Scholarship Donor(s) | DAAD; |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 1998 |