Open AccessAnalysis Infiltration Waters in Various Forms of Irrigation Channels by Using Dual Reciprocity Boundary Element Method
Author(s) -
Aurhasanah,
Muhammad Manaqib,
Irma Fauziah
Publication year - 2020
Publication title -
mantik
Language(s) - English
Resource type - Journals
eISSN - 2527-3167
pISSN - 2527-3159
DOI - 10.15642/mantik.2020.6.1.52-65
Subject(s) - dimensionless quantity , boundary element method , helmholtz equation , reciprocity (cultural anthropology) , infiltration (hvac) , mathematics , boundary value problem , channel (broadcasting) , richards equation , mathematical analysis , soil water , mechanics , geotechnical engineering , finite element method , geology , soil science , physics , engineering , thermodynamics , telecommunications , psychology , social psychology
This research discusses the inltration of furrow irrigation invarious forms of irrigation channels in homogeneous soils. The governing equation of the problems is a Richard’s Equation. This equation is transformed using a set of transformation including Kirchhoff and dimensionless variables into Helmholtz modied equations. Furthermore with Dual Reciprocity Boundary Element Method (DRBEM), numerical solution of modied Helmholtz equation obtained. The proposed method is tested on problem involved inltration from periodic at channels, non-at channels without impermeable and non-at channels with impermeable. The greatest value of suction potential and water content is located below the channel surface. The most water consecutively is a non-flat channel without impermeable, non-flat channel with impermeable and flat channel on Lakish Clay soils.