Simulation of unsteady flow and soil erosion in irrigation furrows

Shiyan Zhang, Guohong Duan, Theodor S. Strelkoff, Eduardo Bautista

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

This study developed a one-dimensional numerical model for the simulation of unsteady flow and the resultant soil erosion in irrigation furrows. The model solves a modified version of the Saint-Venant equations that consider the loss of mass and momentum attributable to infiltration and sediment transport. The transport rate of fine sediment was predicted with a modified Laursen formula that treats the tractive shear stress as a function of both Reynolds number and the particle size. The modified Laursen formula was verified by using the erosion data measured in the field and in a laboratory flume. The model accurately predicted flow advance times and outflow hydrographs in comparison with data measured in irrigation furrows at Kimberly, Idaho. Sediment discharge predictions were less accurate.

Original languageEnglish (US)
Pages (from-to)294-303
Number of pages10
JournalJournal of Irrigation and Drainage Engineering
Volume138
Issue number4
DOIs
StatePublished - Apr 26 2012

Fingerprint

furrow irrigation
transient flow
Saints
unsteady flow
Unsteady flow
Particle Size
Irrigation
soil erosion
Erosion
Sediments
Soil
Soils
sediment yield
Sediment transport
momentum
sediment transport
hydrograph
Infiltration
Reynolds number
sediment

Keywords

  • Infiltration
  • Irrigation furrows
  • Sediment transport
  • Unsteady flow

ASJC Scopus subject areas

  • Agricultural and Biological Sciences (miscellaneous)
  • Water Science and Technology
  • Civil and Structural Engineering

Cite this

Simulation of unsteady flow and soil erosion in irrigation furrows. / Zhang, Shiyan; Duan, Guohong; Strelkoff, Theodor S.; Bautista, Eduardo.

In: Journal of Irrigation and Drainage Engineering, Vol. 138, No. 4, 26.04.2012, p. 294-303.

Research output: Contribution to journalArticle

Zhang, Shiyan ; Duan, Guohong ; Strelkoff, Theodor S. ; Bautista, Eduardo. / Simulation of unsteady flow and soil erosion in irrigation furrows. In: Journal of Irrigation and Drainage Engineering. 2012 ; Vol. 138, No. 4. pp. 294-303.
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