1Mechanical Engineering Dept College Of Engineering and Technology, Arab Academy for Science and Technology, Alexandria, Egypt
2Mechanical Engineering Dept Faculty of Engineering, Alexandria University, Alexandria, Egypt
In the present study, experiments were carried out on a laboratory circuit to determine the effect of adding fertilizer to the irrigation water as an effective agent to reduce friction. The fertilizer used is Urea Ammonium Nitrate (UAN32). It is a liquid soluble fertilizer used to mix with irrigation water. Several concentrations were used at different Reynolds numbers. The results show that with increasing the UAN32 fertilizer concentration the drag reduction increases till it reaches a maximum value of 6.5% at concentration of 11,000 parts per million, PPM. In addition, as the Reynolds number increases the percentage drag reduction increases in agreement with the well-established results in the open literature.
Drag reduction, Sprinkler Irrigation, Fertigation
