Irrigation & Drainage Systems Engineering

Zerihun D

Publications

• Research Article
  Hydraulics of Linear-Move Sprinkler Irrigation Systems, II: Model Development
  Author(s): Zerihun D and Sanchez CAZerihun D and Sanchez CA
  
  This manuscript presents a hydraulic simulation model for linear-move sprinkler irrigation laterals equipped with pressure reducing valves (prvs). The linear-move lateral considered here consists of a series of arched spans with a specified geometry and multiple outlet-ports. Lateral diameter, hydraulic resistance characteristics, field slope, spacing between outlets, and sprinkler hydraulic characteristics can be constant or variable along a lateral. Lowpressure sprinklers, or spray nozzles, coupled to pressure reducing valves are used in these laterals to achieve controlled application of irrigation water. Depending on their modes of operations, prvs can have a significant effect on lateral hydraulics. Thus, operating modes of prvs are defined and their effects on system hydraulics are described in a companion manuscript. The basic algorithms of the hydrau.. Read More»
  

  Abstract PDF