Irrigation & Drainage Systems Engineering

Zerihun D

Publications

• Review Article
  Modeling Flow and Solute Transport in Irrigation Furrows
  Author(s): Zerihun D, Charles A Sanchez, Lazarovitch N, Warrick AW, Clemmens AJ and Bautista EZerihun D, Charles A Sanchez, Lazarovitch N, Warrick AW, Clemmens AJ and Bautista E
  
  This paper presents an internally coupled flow and solute transport model for free-draining irrigation furrows. Furrow hydraulics is simulated with a numerical zero-inertia model and solute transport is computed with a numerical cross-section averaged advection-dispersion model. A procedure for integrating the furrow volumetric cumulative intake integral in the context of a hydraulic model is presented. Two hydraulic and solute transport data sets collected in sloping free-draining test furrows were used in model evaluation. Soil intake and hydraulic parameters were estimated with a simple approach that matches simulated and measured flow depth hydrographs. The field-scale Weighted Mean Relative Residual (WMRR) between measured and model predicted flow depth hydrographs are 22.0% and 29.0% for the two data set. Furthermore, it is shown that the WMRR of 29.0% reduces to 16.0%, when onl.. Read More»
  DOI: 10.4172/2168-9768.1000124

  Abstract PDF