Your search found 3 records
1 Heermann, D. F.; Kohl, R. A.. 1983. Fluid dynamics of sprinkler systems. In Jensen, M. E. (Ed.), Design and operation of farm irrigation systems. St. Joseph, MI, USA: ASAE. pp.583-618. (ASAE monograph no.3)
Sprinkler irrigation ; Pipes ; Soil water relations ; Evaporation ; Environmental effects ; Design criteria
(Location: IWMI-HQ Call no: 631.7.1 G000 JEN Record No: H03209)
2 DeBoer, D. W.; Monnens, M. J.; Kohl, R. A.. 1992. Operational characteristics of two rotating-plate sprinklers. In Feyen, J.; Mwendera, E.; Badji, M. (Eds.), Advances in planning, design and management of irrigation systems as related to sustainable land use: Proceedings of an International Conference organized by the Center for Irrigation Engineering of the Katholieke Universiteit Leuven in cooperation with the European Committee for Water Resources Management, Leuven, Belgium, 14-17 September 1992. Vol. 1. Leuven, Belgium: Center for Irrigation Engineering. pp.339-346.
(Location: IWMI-HQ Call no: 631.7.1 G000 FEY Record No: H014363)
Two new irrigation sprinklers with rotating spray plates were evaluated under laboratory conditions. The sprinklers (R-series, less than 5 rpm, and S-series, greater than 275 rpm) are designed for use on continuous-move irrigation laterals. Four- and six-channel rotating spray plates were operated at 90 and 140 kPa pressures. Radial water application patterns were bimodal in shape. Coefficients of application uniformity for continuous-move laterals were sensitive to sprinkler spacing and varied from 83 to 99 percent. From 51 to 84 percent of the sprinkler discharge was composed of drops smaller than 2 mm in diameter; however, drop sizes larger than 4 mm were common. Drop size distributions did not follow the Rosin-Rammler drop distribution expression for all drop sizes but can be approximated by two expressions for each sprinkler condition. Kinetic energy values for the sprinkler discharge varied from 7.9 to 16.8 Jm-2 mm-1. Satisfactory performance should be expected from these sprinklers for field conditions.
3 de Boer, D. W.; Kohl, R. A.. 1993. Performance characteristics of reduced pressure sprinklers. In ICID, 15th International Congress on Irrigation and Drainage, The Hague, Netherlands, 1993: Water management in the next century: Transactions: Vol.1-C, Question 44, R73-R103: Planning and design of irrigation and drainage systems. New Delhi, India: ICID. pp.1033-1044.
(Location: IWMI-HQ Call no: ICID 631.7 G000 ICI Record No: H015336)
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