Pm. Waller et al., CHEMIGATION PIPELINE TRANSPORT MODEL FOR NONSOLUBLE PESTICIDE .2. NUMERICAL AND FIELD VALIDATION, Transactions of the ASAE, 38(6), 1995, pp. 1711-1718
A computer model describing the injection and transport of a nonsolubl
e pesticide in a linear move irrigation lateral is developed and valid
ated. Inputs to the model are both intensive and extensive properties
of irrigation water and pesticide, and the model outputs chemical conc
entration in water for each sprinkler along the linear move irrigation
lateral. Numerical studies are performed that compare Eulerian and La
grangian methods and provide the transition between the two methods. T
he transport model and a model for evaluating drop diameter are used t
o calculate sprinkler discharge concentration as a function of distanc
e 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.