Application of a Numerical Implicit Model to an Irrigation Canal

Bibliographic Details
Main Author: Rijo, Manuel
Publication Date: 1988
Other Authors: Pereira, Luís Santos, Almeida, António Betâmio
Language: eng
Source: Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
Download full: http://hdl.handle.net/10174/5362
Summary: A case study is presented regarding an application of a computational model to the unsteady flow in an irrigation canal, using an implicit numerical technique. The Saint-Venant equations of continuity and momentum for one-dimensional gradually varied flow were written in a finite-difference form. The system of equations was solved by the double-sweep algorithm. A computer program was written to solve the problem in which a discharge hydrograph is given at the upstream boundary of the canal and a time-dependent water level is specified at the downstream boundary. the model was validated by field tests. A sensitivity analysis was also made concerning the numerical weighting parameter value and the choice of the time step in order to improve the model accuracy. This model will be the basis for an improved canal management in the near future
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spelling Application of a Numerical Implicit Model to an Irrigation Canalcanal modellingunsteady flow hydraulic modelSaint-Venant equationsdouble-sweep algorithmA case study is presented regarding an application of a computational model to the unsteady flow in an irrigation canal, using an implicit numerical technique. The Saint-Venant equations of continuity and momentum for one-dimensional gradually varied flow were written in a finite-difference form. The system of equations was solved by the double-sweep algorithm. A computer program was written to solve the problem in which a discharge hydrograph is given at the upstream boundary of the canal and a time-dependent water level is specified at the downstream boundary. the model was validated by field tests. A sensitivity analysis was also made concerning the numerical weighting parameter value and the choice of the time step in order to improve the model accuracy. This model will be the basis for an improved canal management in the near future2012-10-15T12:09:26Z2012-10-151988-01-01T00:00:00Zbook partinfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10174/5362http://hdl.handle.net/10174/5362engBerlin, Germany1-85312-001-4Springler-Verlag2275-286rijo@uevora.ptndnd469Rijo, ManuelPereira, Luís SantosAlmeida, António Betâmioinfo:eu-repo/semantics/openAccessreponame:Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)instname:FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiainstacron:RCAAP2024-01-03T18:43:41Zoai:dspace.uevora.pt:10174/5362Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireinfo@rcaap.ptopendoar:https://opendoar.ac.uk/repository/71602025-05-28T11:54:39.356511Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) - FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiafalse
dc.title.none.fl_str_mv Application of a Numerical Implicit Model to an Irrigation Canal
title Application of a Numerical Implicit Model to an Irrigation Canal
spellingShingle Application of a Numerical Implicit Model to an Irrigation Canal
Rijo, Manuel
canal modelling
unsteady flow hydraulic model
Saint-Venant equations
double-sweep algorithm
title_short Application of a Numerical Implicit Model to an Irrigation Canal
title_full Application of a Numerical Implicit Model to an Irrigation Canal
title_fullStr Application of a Numerical Implicit Model to an Irrigation Canal
title_full_unstemmed Application of a Numerical Implicit Model to an Irrigation Canal
title_sort Application of a Numerical Implicit Model to an Irrigation Canal
author Rijo, Manuel
author_facet Rijo, Manuel
Pereira, Luís Santos
Almeida, António Betâmio
author_role author
author2 Pereira, Luís Santos
Almeida, António Betâmio
author2_role author
author
dc.contributor.author.fl_str_mv Rijo, Manuel
Pereira, Luís Santos
Almeida, António Betâmio
dc.subject.por.fl_str_mv canal modelling
unsteady flow hydraulic model
Saint-Venant equations
double-sweep algorithm
topic canal modelling
unsteady flow hydraulic model
Saint-Venant equations
double-sweep algorithm
description A case study is presented regarding an application of a computational model to the unsteady flow in an irrigation canal, using an implicit numerical technique. The Saint-Venant equations of continuity and momentum for one-dimensional gradually varied flow were written in a finite-difference form. The system of equations was solved by the double-sweep algorithm. A computer program was written to solve the problem in which a discharge hydrograph is given at the upstream boundary of the canal and a time-dependent water level is specified at the downstream boundary. the model was validated by field tests. A sensitivity analysis was also made concerning the numerical weighting parameter value and the choice of the time step in order to improve the model accuracy. This model will be the basis for an improved canal management in the near future
publishDate 1988
dc.date.none.fl_str_mv 1988-01-01T00:00:00Z
2012-10-15T12:09:26Z
2012-10-15
dc.type.driver.fl_str_mv book part
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10174/5362
http://hdl.handle.net/10174/5362
url http://hdl.handle.net/10174/5362
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Berlin, Germany
1-85312-001-4
Springler-Verlag
2
275-286
rijo@uevora.pt
nd
nd
469
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.none.fl_str_mv reponame:Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
instname:FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
instacron:RCAAP
instname_str FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
instacron_str RCAAP
institution RCAAP
reponame_str Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
collection Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
repository.name.fl_str_mv Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) - FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
repository.mail.fl_str_mv info@rcaap.pt
_version_ 1833592345949372416

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