Polyethylene pipes are widely used in the trickle irrigation system. The main objective of this research work is to determine friction factors for type pipes. A field study was carried out on two laterals each which about 240 m length. One line had 18.5 mm inside diameter, other consisted parts, first 21.5 diameter and 17 diameter. measured factor compared by corresponding given conventional fo...

The hypothesis of this paper is that infiltration into drip irrigated soils can be described by simple spherical considerations as well two dimensional (2D) numerical modeling. major goal was to test a very model based on geometry sphere formulas, and compare it with elaborated solutions field experiments. Detailed analysis soil–water under trickle regimes shown pre-requisite in the search for ...