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dc.contributor.convenorGraeme Tupperen_AU
dc.contributor.authorMatthews, Christopheren_US
dc.contributor.authorCook, F.en_US
dc.contributor.authorKnight, Johnen_US
dc.contributor.authorBraddock, Rogeren_US
dc.contributor.editorDr Balwant Singhen_US
dc.date.accessioned2017-04-24T08:30:02Z
dc.date.available2017-04-24T08:30:02Z
dc.date.issued2004en_US
dc.date.modified2007-08-17T06:41:52Z
dc.identifier.doihttp://www.regional.org.au/au/asssi/supersoil2004/en_AU
dc.identifier.urihttp://hdl.handle.net/10072/2223
dc.description.abstractIn general, the water content (?) form of Richards' Equation is not used when modelling water flow through layered soil since ? is discontinuous at soil layers. Within the literature, there have been examples of models developed for layered soils using the ?-form of Richards' Equation. However, these models usually rely on an approximation of the discontinuity at the soil layer interface. For the first time, this paper will develop an iterative solution based on Newton's Method to explicitly solve for ? at the interface between two soils within a numerical scheme. The numerical scheme used within this paper is the Method of Lines, however, the principles of the iterative solution could be used in other numerical techniques. The paper will show that the iterative scheme is highly efficient converging mostly within 2 iterations. The iterative solution will be tested on two main test cases 1) fine over coarse soil, 2) a coarse over fine soil to ensure that the convergence behaviour holds. A test case from the literature is also considered to ensure the accuracy of the solution.en_US
dc.description.peerreviewedYesen_US
dc.description.publicationstatusYesen_AU
dc.format.extent289770 bytes
dc.format.extent30881 bytes
dc.format.mimetypeapplication/pdf
dc.format.mimetypetext/plain
dc.languageEnglishen_US
dc.language.isoen_AU
dc.publisherThe Regional Institute Ltden_US
dc.publisher.placeGosford, Australiaen_US
dc.publisher.urihttp://www.regional.org.au/au/asssi/supersoil2004/s15/oral/1791_matthewsc.htm#TopOfPageen_AU
dc.relation.ispartof0en_AU
dc.relation.ispartofconferencenameSuperSoil 2004: 3rd Australian New Zealand Soils Conferenceen_US
dc.relation.ispartofconferencetitleSuperSoil 2004: Proceedings of the 3rd Australian New Zealand Soils Conferenceen_US
dc.relation.ispartofdatefrom2004-12-05en_US
dc.relation.ispartofdateto2004-12-09en_US
dc.relation.ispartoflocationUniversity of Sydneyen_US
dc.subject.fieldofresearchcode280210en_US
dc.titleHandling the water content discontinuity at the interface between layered soils within a numerical schemeen_US
dc.typeConference outputen_US
dc.type.descriptionE1 - Conference Publications (HERDC)en_US
dc.type.codeE - Conference Publicationsen_US
gro.facultyGriffith Sciences, Griffith School of Environmenten_US
gro.rights.copyrightCopyright remains with the authors 2004 Griffith University. This is the author-manuscript version of the paper. It is posted here with permission of the copyright owners for your personal use only. No further distributions permitted. The Regional Institute Ltd retains the non-exclusive right to publish the proceedings from the SuperSoil 2004, the 3rd Australian New Zealand Soils Conference in electronic format in perpetuity. Reproduction and the making available of this material for personal or non-commercial purposes is authorised, on condition that: attribution is given to the copyright owner; no official connection is claimed; the material is made available without charge or at cost; and the material is not subject to inaccurate, misleading or derogatory treatment.en_AU
gro.date.issued2004
gro.hasfulltextFull Text


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