Hydraulic function of subsurface pipe drainage system on agricultural and drainage experimental field in Mashtul pilot area (Nile Delta, Egypt)
Resource information
Date of publication
апреля 2011
Resource Language
ISBN / Resource ID
AGRIS:CZ2011000756
Pages
103-112
The objective of this article is to explain the hydraulic function of subsurface pipe drainage system on agricultural experimental field in Mashtul Pilot Area (Nile Delta) in non-steady state drainage flow conditions. Subsurface drainage structures were designed for the conditions of steady state drainage flow. However, in reality non-steady state drainage situations prevail. A model to solve the problem is presented. Boussinesq's equation was used to study the non-steady state drainage flow. The final expression of lowering of water table in time was approximated by Glover-Dumm.