Design of Microirrigation Submain Units
Publication: Journal of Irrigation and Drainage Engineering
Volume 122, Issue 2
Abstract
A method was developed for designing microirrigation submain units. The lateral discharge equation was used to express the relationship between the discharge and pressure head at the inlet of a lateral to allow a submain unit to be considered as a lateral and a lateral as an emitter. The finite-element method was employed to analyze the pressure head and discharge distributions along laterals and submain. The golden section search was applied to find the operating pressure heads of the lateral and submain corresponding to the required average emitter discharge. When the required average emitter discharge, the required uniformity of water application, one parameter—either the lateral length or diameter, one parameter—either the submain length or diameter, and the field conditions are given, then the unknown parameters, the best submain position (paired laterals), and the operating pressure head of the submain unit can be accurately designed using a personal computer.
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References
1.
Bralts, V. F., and Segerlind, L. J.(1985). “Finite element analysis of drip irrigation submain units.”Trans., Am. Soc. of Agric. Engrs., 28(3), 809–814.
2.
Bralts, V. F., Kelly, S. F., Shayya, W. H., and Segerlind, L. J.(1993). “Finite element analysis of microirrigation hydraulics using a virtual emitter system.”Trans., Am. Soc. of Agric. Engrs., 36(3), 717–725.
3.
Kang, Y., and Nishiyama, S.(1994). “Finite element method analysis of microirrigation system pressure distribution.”Trans., Japanese Soc. of Irrig., Drain. and Reclamation Engrg., Tokyo, Japan, 169, 19–26.
4.
Kang, Y., and Nishiyama, S.(1995). “Hydraulic analysis of microirrigation submain units.”Trans., Am. Soc. of Agric. Engrs., 38(5), 1377–1384.
5.
Kang, Y., and Nishiyama, S. (1995a). “Analysis of microirrigation systems using a lateral discharge equation.”Trans., Am. Soc. of Agric. Engrs.
6.
Kang, Y., and Nishiyama, S.(1996b). “Analysis and design of microirrigation lateral.”J. Irrig. and Drain. Engrg., ASCE, 122(2), 75–82.
7.
Kang, Y., Nishiyama, S., and Kawano, H. (1995). “Finite element method analysis of large scale microirrigation systems.”Proc., 5th Int. Microirrig. Congr., ASAE Publ. 4-95, Am. Soc. of Agric. Engrs., St. Joseph, Mich., 84–90.
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Published In
Journal of Irrigation and Drainage Engineering
Volume 122 • Issue 2 • March 1996
Pages: 83 - 89
Copyright
Copyright © 1996 American Society of Civil Engineers.
History
Published online: Mar 1, 1996
Published in print: Mar 1996
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