Chemigation pipeline transport model for nonsoluble pesticide. II. Numerical and field validation

Peter M Waller, D. J. Hills, D. K. Giles

Research output: Contribution to journalArticle

Abstract

A computer model describing the injection and transport of a nonsoluble pesticide in a linear move irrigation lateral is developed and validated. Inputs to the model are both intensive and extensive properties of irrigation water and pesticide, and the model outputs chemical concentration in water for each sprinkler along the linear move irrigation lateral. Numerical studies are performed that compare Eulerian and Lagrangian methods and provide the transition between the two methods. The transport model and a model for evaluating drop diameter are used to calculate sprinkler discharge concentration as a function of distance along the pipeline, and the model is compared with field data for a single port injector. The model is also evaluated for multiorifice and multiport injection systems. A technique for optimizing placement of injectors for the multiport system is described and evaluated.

Original languageEnglish (US)
Pages (from-to)1711-1718
Number of pages8
JournalTransactions of the American Society of Agricultural Engineers
Volume38
Issue number6
StatePublished - Nov 1995
Externally publishedYes

Fingerprint

chemigation
Pesticides
pesticides
Pipelines
pesticide
Chemical Models
Injections
Water
lateral move irrigation
Computer Simulation
injectors
Irrigation
irrigation
injection
chemical concentration
sprinkler irrigation
sprinklers
computer simulation
irrigation water
Discharge (fluid mechanics)

ASJC Scopus subject areas

  • Agricultural and Biological Sciences (miscellaneous)
  • Engineering(all)

Cite this

Chemigation pipeline transport model for nonsoluble pesticide. II. Numerical and field validation. / Waller, Peter M; Hills, D. J.; Giles, D. K.

In: Transactions of the American Society of Agricultural Engineers, Vol. 38, No. 6, 11.1995, p. 1711-1718.

Research output: Contribution to journalArticle

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