Revalidation of elder's equation for accurate measurements of dispersion coefficients in natural flows
One of first practical definitions for numerical solutions of classical model of Advection-Dispersion was the Elder's equation developed in 1959. This relationship based on the theoretical guidance proposed by G.I. Taylor for long, straight pipes, extent successfully the method for the case of...
- Autores:
-
Constain Aragon, Alfredo Jose
- Tipo de recurso:
- Article of journal
- Fecha de publicación:
- 2014
- Institución:
- Universidad Nacional de Colombia
- Repositorio:
- Universidad Nacional de Colombia
- Idioma:
- spa
- OAI Identifier:
- oai:repositorio.unal.edu.co:unal/48906
- Acceso en línea:
- https://repositorio.unal.edu.co/handle/unal/48906
http://bdigital.unal.edu.co/42363/
- Palabra clave:
- Dispersion
Gaussian dynamics
water quality studies
- Rights
- openAccess
- License
- Atribución-NoComercial 4.0 Internacional
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Atribución-NoComercial 4.0 InternacionalDerechos reservados - Universidad Nacional de Colombiahttp://creativecommons.org/licenses/by-nc/4.0/info:eu-repo/semantics/openAccesshttp://purl.org/coar/access_right/c_abf2Constain Aragon, Alfredo Jose1619f7ca-a59b-4f78-8baf-ea060aa0a5723002019-06-29T08:12:21Z2019-06-29T08:12:21Z2014-08-25https://repositorio.unal.edu.co/handle/unal/48906http://bdigital.unal.edu.co/42363/One of first practical definitions for numerical solutions of classical model of Advection-Dispersion was the Elder's equation developed in 1959. This relationship based on the theoretical guidance proposed by G.I. Taylor for long, straight pipes, extent successfully the method for the case of ideal prismatic, wide channels in open flow. However, wishing to apply it to real cases with varied geometry the results were not satisfactory due to several reasons which will be examined in this article. This limiting situation for the equation is inconvenient for two reasons: First, whatsoever it is a very used equation due to its simplicity and to the fact that involve geomorphologic parameters, without requiring tracers. Secondly but not the less important, because it is based on fundamental mechanisms that are widely accepted, and then they should not lead to results in conflict with experiments. For these reasons, and also because the study of water quality depends critically on the understanding of these processes, it is interesting to review this subject. It will be tried to show if it is used a longitudinal coefficient function of time it is possible to recover the applicability of equation. For this it is used an extended work of PhD thesis done by H.B. Fischer in the Mc Keck channel of Caltech on behavior of Elder's relationship.application/pdfspaUniversidad Nacional de Colombia Sede Medellínhttp://revistas.unal.edu.co/index.php/dyna/article/view/36987Universidad Nacional de Colombia Revistas electrónicas UN DynaDynaDyna; Vol. 81, núm. 186 (2014); 19-27 DYNA; Vol. 81, núm. 186 (2014); 19-27 2346-2183 0012-7353Constain Aragon, Alfredo Jose (2014) Revalidation of elder's equation for accurate measurements of dispersion coefficients in natural flows. Dyna; Vol. 81, núm. 186 (2014); 19-27 DYNA; Vol. 81, núm. 186 (2014); 19-27 2346-2183 0012-7353 .Revalidation of elder's equation for accurate measurements of dispersion coefficients in natural flowsArtículo de revistainfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501http://purl.org/coar/resource_type/c_2df8fbb1http://purl.org/coar/version/c_970fb48d4fbd8a85Texthttp://purl.org/redcol/resource_type/ARTDispersionGaussian dynamicswater quality studiesORIGINAL36987-217009-1-PB.pdfapplication/pdf1253322https://repositorio.unal.edu.co/bitstream/unal/48906/1/36987-217009-1-PB.pdf3e2d76781482e8f1857ffa5f46f9b704MD5136987-156543-1-SP.docxapplication/vnd.openxmlformats-officedocument.wordprocessingml.document14291https://repositorio.unal.edu.co/bitstream/unal/48906/2/36987-156543-1-SP.docxdbadf3a61af12788cfa41d54c23028d9MD52THUMBNAIL36987-217009-1-PB.pdf.jpg36987-217009-1-PB.pdf.jpgGenerated Thumbnailimage/jpeg9383https://repositorio.unal.edu.co/bitstream/unal/48906/3/36987-217009-1-PB.pdf.jpgea62212b284bda4942416eaffd43a4fbMD53unal/48906oai:repositorio.unal.edu.co:unal/489062023-11-05 23:19:22.057Repositorio Institucional Universidad Nacional de Colombiarepositorio_nal@unal.edu.co |
dc.title.spa.fl_str_mv |
Revalidation of elder's equation for accurate measurements of dispersion coefficients in natural flows |
title |
Revalidation of elder's equation for accurate measurements of dispersion coefficients in natural flows |
spellingShingle |
Revalidation of elder's equation for accurate measurements of dispersion coefficients in natural flows Dispersion Gaussian dynamics water quality studies |
title_short |
Revalidation of elder's equation for accurate measurements of dispersion coefficients in natural flows |
title_full |
Revalidation of elder's equation for accurate measurements of dispersion coefficients in natural flows |
title_fullStr |
Revalidation of elder's equation for accurate measurements of dispersion coefficients in natural flows |
title_full_unstemmed |
Revalidation of elder's equation for accurate measurements of dispersion coefficients in natural flows |
title_sort |
Revalidation of elder's equation for accurate measurements of dispersion coefficients in natural flows |
dc.creator.fl_str_mv |
Constain Aragon, Alfredo Jose |
dc.contributor.author.spa.fl_str_mv |
Constain Aragon, Alfredo Jose |
dc.subject.proposal.spa.fl_str_mv |
Dispersion Gaussian dynamics water quality studies |
topic |
Dispersion Gaussian dynamics water quality studies |
description |
One of first practical definitions for numerical solutions of classical model of Advection-Dispersion was the Elder's equation developed in 1959. This relationship based on the theoretical guidance proposed by G.I. Taylor for long, straight pipes, extent successfully the method for the case of ideal prismatic, wide channels in open flow. However, wishing to apply it to real cases with varied geometry the results were not satisfactory due to several reasons which will be examined in this article. This limiting situation for the equation is inconvenient for two reasons: First, whatsoever it is a very used equation due to its simplicity and to the fact that involve geomorphologic parameters, without requiring tracers. Secondly but not the less important, because it is based on fundamental mechanisms that are widely accepted, and then they should not lead to results in conflict with experiments. For these reasons, and also because the study of water quality depends critically on the understanding of these processes, it is interesting to review this subject. It will be tried to show if it is used a longitudinal coefficient function of time it is possible to recover the applicability of equation. For this it is used an extended work of PhD thesis done by H.B. Fischer in the Mc Keck channel of Caltech on behavior of Elder's relationship. |
publishDate |
2014 |
dc.date.issued.spa.fl_str_mv |
2014-08-25 |
dc.date.accessioned.spa.fl_str_mv |
2019-06-29T08:12:21Z |
dc.date.available.spa.fl_str_mv |
2019-06-29T08:12:21Z |
dc.type.spa.fl_str_mv |
Artículo de revista |
dc.type.coar.fl_str_mv |
http://purl.org/coar/resource_type/c_2df8fbb1 |
dc.type.driver.spa.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.version.spa.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.coar.spa.fl_str_mv |
http://purl.org/coar/resource_type/c_6501 |
dc.type.coarversion.spa.fl_str_mv |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
dc.type.content.spa.fl_str_mv |
Text |
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http://purl.org/redcol/resource_type/ART |
format |
http://purl.org/coar/resource_type/c_6501 |
status_str |
publishedVersion |
dc.identifier.uri.none.fl_str_mv |
https://repositorio.unal.edu.co/handle/unal/48906 |
dc.identifier.eprints.spa.fl_str_mv |
http://bdigital.unal.edu.co/42363/ |
url |
https://repositorio.unal.edu.co/handle/unal/48906 http://bdigital.unal.edu.co/42363/ |
dc.language.iso.spa.fl_str_mv |
spa |
language |
spa |
dc.relation.spa.fl_str_mv |
http://revistas.unal.edu.co/index.php/dyna/article/view/36987 |
dc.relation.ispartof.spa.fl_str_mv |
Universidad Nacional de Colombia Revistas electrónicas UN Dyna Dyna |
dc.relation.ispartofseries.none.fl_str_mv |
Dyna; Vol. 81, núm. 186 (2014); 19-27 DYNA; Vol. 81, núm. 186 (2014); 19-27 2346-2183 0012-7353 |
dc.relation.references.spa.fl_str_mv |
Constain Aragon, Alfredo Jose (2014) Revalidation of elder's equation for accurate measurements of dispersion coefficients in natural flows. Dyna; Vol. 81, núm. 186 (2014); 19-27 DYNA; Vol. 81, núm. 186 (2014); 19-27 2346-2183 0012-7353 . |
dc.rights.spa.fl_str_mv |
Derechos reservados - Universidad Nacional de Colombia |
dc.rights.coar.fl_str_mv |
http://purl.org/coar/access_right/c_abf2 |
dc.rights.license.spa.fl_str_mv |
Atribución-NoComercial 4.0 Internacional |
dc.rights.uri.spa.fl_str_mv |
http://creativecommons.org/licenses/by-nc/4.0/ |
dc.rights.accessrights.spa.fl_str_mv |
info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Atribución-NoComercial 4.0 Internacional Derechos reservados - Universidad Nacional de Colombia http://creativecommons.org/licenses/by-nc/4.0/ http://purl.org/coar/access_right/c_abf2 |
eu_rights_str_mv |
openAccess |
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application/pdf |
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Universidad Nacional de Colombia Sede Medellín |
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Universidad Nacional de Colombia |
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