Mathematical model of an irrigation canal system

AuthorSandat Richiravanich
Call NumberAIT Thesis no. 571
Subject(s)Water conservation--Thailand
Irrigation canals and flumes
Irrigation--Thailand
NoteA thesis submitted in partial fulfilment of the requirements for the Degree of Master of Engineering in the Asian Institute of Technology, Bangkok, Thailand.
PublisherAsian Institute of Technology
AbstractA simulation approach using formulated mathematical models to determine the hydraulic characteristics of the main distribution system of an irrigation canal was introduced to regulate the control structures pf the system. The system is composed of a conveyance canal which is divided into reaches by several control structures. Discharges and water levels in the canal are controlled by a system of canal regulators. The system was simulated by calibrating the roughness coefficients of the reaches and the system discharge coefficient using the water surface profiles observed during steady conditions. The system discharge coefficients were shown as functions of the reach characteristics and the ratio between height of gate opening and head approaching the control structure. The roughness coefficients and the corresponding relationships of system discharge coefficient were used to determine the gate openings and to predict the water levels at various stations along the canal for a given discharge through each regulator and the retention levels upstream of the regulators.
Year1973
TypeThesis
SchoolStudent Research Before 1980
DepartmentOther Field of Studies (No Department)
Academic Program/FoSThesis (Year <=1979)
Chairperson(s)Arbhabhirama Anat
Examination Committee(s)Prida Thimakorn
Scholarship Donor(s)Canadian Government
DegreeThesis (M. Eng.) - Asian Institute of Technology, 1973


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