Head Loss Experimental Analysis of Trickle Irrigation under the Low Pressure
HONG Ming
LI Yuan-nong
MA Ying-jie
HONG Hui
WANG Hong
Abstract：Under the inlet working head range 0.25 m to 2.4 m,experiment carried with laterals which diameter are 12 mm and 16 mm respective,pitch in 0.9 mm and 1.2 mm,aperture in 33 cm.The result showed that there are great windage between measured value and calculated value which calculated by Dacy-weisbach formula and empirical formula,two of which are suitable to normal pressure drip irrigation system.Based on regression analysis of experimental data,did a modified to empirical formula with a parameter that related to inlet working head and got good calculation accuracy.
Keywords：low pressurecalculation of head losslaterals of drip irrigation
Publication Date：2010-01-01
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：4( 50-52,73 )