Assessment of Tile and Mole Drainage System by a Hele-Shaw Model for Artesian Conditions.

Document Type : Research Studies

Authors

Irrigation & Hydraulics Engineering Department., Faculty of Engineering Department., El-Mansoura University., Mansoura., Egypt.

Abstract

The authors present in this paper an experimental study for the problem of an agricultural soil subjected to an up ward potential gradient. The present study deals with an existing tile drainage system assisted by pole drains of the same diameter. A Hele-Shaw model is designed and constructed to investigate the drainage characteristics of the proposed drainage system. About three hundreds runs were carried out using an oil with a certain Viscosity. The effect of various parameters on the discharges of both tile and mole drains are calculated and plotted in dimensionless forms. It was found that the mole drains play an important role for the design of the combined tile and mole drainage system from the economical point of view. 

Main Subjects