TECHNICAL PAPERS
Nov 1, 1998

Analytical Approach for Direct Drip Lateral Hydraulic Calculation

Publication: Journal of Irrigation and Drainage Engineering
Volume 124, Issue 6

Abstract

In application of previous analytical approaches for drip lateral hydraulic computation, it is generally assumed that the emitter outflow along the lateral is constant. This basic assumption may cause significant errors in hydraulic computation. In this present paper an accurate analytical approach is developed. In the suggested analysis the emitter outflow is considered to be variable along the lateral. The proposed method is demonstrated over a practical range of variation of drip irrigation parameters. A comparison test indicated that the suggested analytical approach produces results that follows closely the accurate numerical solution.

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References

1.
Anyoji, H., and Wu, I. P.(1987). “Statistical approach for drip lateral design.”Trans. ASAE, 30(1), 187–192.
2.
Hathoot, H. M., Al-Amoud, A. I., and Mohamed, F. S.(1993). “Analysis and design of trickle-irrigation laterals.”J. Irrig. and Drain. Engrg., ASCE, 119(5), 756–767.
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Kang, V., and Nishiyama, S.(1996). “Analysis and design of microirrigation laterals.”J. Irrig. and Drain. Engrg., ASCE, 122(2), 75–81.
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Solomon, K., and Keller, J.(1978). “Trickle irrigation uniformity and efficiency.”J. Irrig. and Drain. Div., ASCE, 104(3), 293–306.
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Vitayew, M., and Warrick, A. W.(1988). “Trickle lateral hydraulics. II: Design and examples.”J. Irrig. and Drain. Engrg., ASCE, 114(2), 289–300.
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Warrick, A. W., and Vitayew, M. (1988). “Trickle lateral hydraulics. I: Analytical solution.”J. Irrig. and Drain. Engrg., ASCE, 114(2), 281– 288.
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Published In

Go to Journal of Irrigation and Drainage Engineering
Journal of Irrigation and Drainage Engineering
Volume 124Issue 6November 1998
Pages: 300 - 305

History

Published online: Nov 1, 1998
Published in print: Nov 1998

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Authors

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John D. Valiantzas
Asst. Prof., Lab. of Agric. Hydr., Agric. Univ. of Athens, 75 Iera Odos, 11855, Athens, Greece.

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