Open AccessExperimental and numerical investigation of laboratory scale sheetpipe-typed automatic subsurface irrigation
Author(s) -
Satyanto Krido Saptomo,
. Rudiyanto,
Muhamad Askari,
Chusnul Arif,
Willy Bayuardi Suwarno,
Adlan,
Rusianto,
Budi Indra Setiawan,
Koremasa Tamura,
Hiroshi Matsuda
Publication year - 2021
Publication title -
communications in science and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.136
H-Index - 5
eISSN - 2502-9266
pISSN - 2502-9258
DOI - 10.21924/cst.6.2.2021.604
Subject(s) - water table , setpoint , environmental science , drainage , water content , soil water , soil science , irrigation , moisture , hydrology (agriculture) , saturation (graph theory) , geotechnical engineering , geology , materials science , groundwater , mathematics , ecology , combinatorics , artificial intelligence , computer science , composite material , biology
Sheet pipe is a type of perforated pipe used for drainage designed initially for drainage but has the potential for sub-surface irrigation. The objectives of this study were to experiment and observe the performance of the sub-surface irrigation control system with sheet pipe. This investigation covered the observation of water table control and its effect on soil moisture. The detailed process of water flow during the setting of the water table was numerically modeled in 2 dimensions to observe the distribution of soil moisture, soil pressure, and flux. The results showed that the system successfully controlled the water table at the desired level in the experiment. The developed two-dimensional numerical simulation showed the distribution of soil moisture in the model center as a response to the water table increase, represented by the variable head. The soil wetting advances toward soil surface driven by the water table, which was increased gradually and reached saturation at the height of water table setpoint.