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Energy gradient line approach for direct hydraulic calculation in drip irrigation design

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Summary

Direct calculations can be made for all emitter flows along a lateral line and in a submain unit based on an Energy Gradient Line (EGL) approach. Errors caused by the EGL approach were evaluated by a computer simulation. A Revised Energy Gradient Line (REGL) approach, developed using a mean discharge approximation, can reduce the errors and match with the results from a Step-by-Step (SBS) calculation for all emitters in a drip system. The developed equations can be used for computerized design of drip irrigation systems.

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Authors and Affiliations

  1. Agricultural Engineering Department, University of Hawaii, 96822, Honolulu, HI, USA

    I. P. Wu

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  1. I. P. Wu
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Wu, I.P. Energy gradient line approach for direct hydraulic calculation in drip irrigation design. Irrig Sci 13, 21–29 (1992). https://doi.org/10.1007/BF00190241

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  • DOI: https://doi.org/10.1007/BF00190241

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