A Hydraulic Study of Trickle Irrigation. | ||||
| MEJ- Mansoura Engineering Journal | ||||
| Article 3, Volume 18, Issue 3, September 1993, Page 9-24 PDF (392.73 K) | ||||
| Document Type: Research Studies | ||||
| DOI: 10.21608/bfemu.2021.165473 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
| Abdel Razik Ahmed El-Sayed Zidan* 1; El-Sir El-Tayeb El-Amin2 | ||||
| 1Associate Professor., Irrigation and Hydraulic Engineering Department., Faculty of Engineering., El-Mansoura University., Mansoura., Egypt. | ||||
| 2Research Assistant., Agricultural Engineering Department., College of Agriculture., Al-Qassim., King Saud University., Saudi Arabia. | ||||
| Abstract | ||||
| Polyethylene pipes are widely used in the trickle irrigation system. The main objective of this research work is to determine friction factors for this type of pipes. A field study was carried out on two trickle irrigation laterals each of which was about 240 m in length. One line had 18.5 mm inside diameter, the other consisted of two parts, the first was 21.5 mm inside diameter and the other was 17 mm inside diameter. The measured friction factor was compared by the corresponding friction factors given by conventional friction formulae. Blasius equation has to be modified to cope with the measured factors, and predicted equations are presented. The relationship between the discharge of the orifice type emitter and the pressure exerted on it, is given. | ||||
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