Head Loss in Manifolds Or Trickle Lateral: Simplified Approach
Publication: Journal of Irrigation and Drainage Engineering
Volume 115, Issue 4
Abstract
Uniform distribution of water along a lateral or manifold is one of the primary objectives of a pressurized irrigation system designer. To design a system that will meet this objective requires establishing a relationship between pressure and flow rate. This requires knowledge of the head loss along the lateral or manifold. Total head loss from a lateral with sufficiently close outlets is considered. A simple analytical solution that gives a relationship between relative discharge and length, which, in turn, can be used to calculate the total head distribution along the lateral or manifold, is developed. Values calculated using this simplified expression compared very well with results of other, more complicated expressions. The approcah presented herein requires only the relative discharge at the two ends of a lateral or a manifold.
Get full access to this article
View all available purchase options and get full access to this article.
References
1.
Warrick, A. W., and Yitayew, M. (1987). “An analytical solution for flow in a manifold.” Adv. Water Resour., 10, June, 58–63.
2.
Warrick, A. W., and Yitayew, M. (1988). “Trickle lateral hydraulics I: Analytical solution.” J. Irrig. and Drain. Engrg., ASCE, 114(2), 281–288.
3.
Wu, I. P., Howell, T., and Hiler, E. (1974). “Hydraulic design of drip irrigation systems.” Tech. Bull. No. 105, Hawaii Agricultural Experiment Station, University of Hawaii, Honolulu, Hawaii.
4.
Yitayew, M., and Warrick, A. W. (1988a). “Velocity head considerations for trickle laterals.” J. Irrig. and Drain. Engrg., ASCE, 113(4), 611–615.
5.
Yitayew, M., and Warrick, A. W. (1988b). “Trickle lateral hydraulics II: design and examples.” J. Irrig. and Drain. Engrg., ASCE, 114(2), 289–300.
Information & Authors
Information
Published In
Copyright
Copyright © 1989 ASCE.
History
Published online: Aug 1, 1989
Published in print: Aug 1989
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.