Determinação dos coeficientes de difusão turbulenta para a região do Porto de Rio Grande, RS, Brasil
Autor(a) principal: | |
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Data de Publicação: | 2005 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Institucional da FURG (RI FURG) |
Texto Completo: | http://repositorio.furg.br/handle/1/2773 |
Resumo: | This work presents a study on the horizontal turbulent eddy diffusion for both inner part and shallow areas around of Rio Grande Harbor navigation channel, Patos Lagoon estuary, RS, Brazil. It was made through the monitoring of Rodamine ‘B’ dyeusing aerial photos and water samples. From the radiometric interpretation of aerial photos in concomitance with tracer concentration level measured on environment was determined two different diffusion modes, one into the navigation channel dominated by strong currents and other on shallow areas in agree with weak local hydrodynamics. The mean horizontal turbulent eddy diffusion (K) determined for whole event was about 10065 cm²/s. Into the channel was identified a crescent diffusion rate with relation to the diffusion time and advection length, meanwhile in shallow areas was identified one decelerated process. The same was observed to the along flow eddy diffusion (Kx) and cross flow eddy diffusion (Ky). It’s also verified which the longitudinal eddy diffusion (Kx) varied from two to three times higher than transversal eddy diffusion (Ky) all process long. In shallow areas was also identified a eceleration on ratio between Kx and Ky. This behavior suggests one more important dispersion process into the channel when compared with the marginal areas. |
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Fontoura, Jose Antonio ScottiNiencheski, Luis Felipe HaxAntiqueira, Jose Antonio Fonseca de2012-11-16T16:15:40Z2012-11-16T16:15:40Z2005FONTOURA, José Antônio Scotti; NIENCHESKI, Luis Felipe Hax; ANTIQUEIRA, Jose Antonio. Determinação dos coeficientes de difusão turbulenta para a região do Porto de Rio Grande, RS, Brasil. Brazilian Journal of Aquatic Science and Technology, v. 9, n. 2, p. 87-92, 2005. Disponível em: <http://www6.univali.br/seer/index.php/bjast/article/view/593/504>. Acesso em: 20 jun. 2012.http://repositorio.furg.br/handle/1/2773This work presents a study on the horizontal turbulent eddy diffusion for both inner part and shallow areas around of Rio Grande Harbor navigation channel, Patos Lagoon estuary, RS, Brazil. It was made through the monitoring of Rodamine ‘B’ dyeusing aerial photos and water samples. From the radiometric interpretation of aerial photos in concomitance with tracer concentration level measured on environment was determined two different diffusion modes, one into the navigation channel dominated by strong currents and other on shallow areas in agree with weak local hydrodynamics. The mean horizontal turbulent eddy diffusion (K) determined for whole event was about 10065 cm²/s. Into the channel was identified a crescent diffusion rate with relation to the diffusion time and advection length, meanwhile in shallow areas was identified one decelerated process. The same was observed to the along flow eddy diffusion (Kx) and cross flow eddy diffusion (Ky). It’s also verified which the longitudinal eddy diffusion (Kx) varied from two to three times higher than transversal eddy diffusion (Ky) all process long. In shallow areas was also identified a eceleration on ratio between Kx and Ky. This behavior suggests one more important dispersion process into the channel when compared with the marginal areas.porEddy diffusionFluorescent tracersDispersion of pollutantsRodamine ‘B’Determinação dos coeficientes de difusão turbulenta para a região do Porto de Rio Grande, RS, BrasilDetermination of eddy diffusion coefficients for the area of Rio Grande harbor, RS, Brazilinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da FURG (RI FURG)instname:Universidade Federal do Rio Grande (FURG)instacron:FURGORIGINALDETERMINAÇÃO DOS COEFICIENTES.pdfDETERMINAÇÃO DOS COEFICIENTES.pdfapplication/pdf173842https://repositorio.furg.br/bitstream/1/2773/1/DETERMINA%c3%87%c3%83O%20DOS%20COEFICIENTES.pdf37154dfe784bbfd6fdc4e7e1833eefa2MD51open accessLICENSElicense.txtlicense.txttext/plain; charset=utf-81724https://repositorio.furg.br/bitstream/1/2773/2/license.txt5b92b9704b4f13242d70e45ddef35a68MD52open access1/27732019-11-13 18:56:47.218open accessoai:repositorio.furg.br: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Repositório InstitucionalPUBhttps://repositorio.furg.br/oai/request || http://200.19.254.174/oai/requestopendoar:2019-11-13T21:56:47Repositório Institucional da FURG (RI FURG) - Universidade Federal do Rio Grande (FURG)false |
dc.title.pt_BR.fl_str_mv |
Determinação dos coeficientes de difusão turbulenta para a região do Porto de Rio Grande, RS, Brasil |
dc.title.alternative.pt_BR.fl_str_mv |
Determination of eddy diffusion coefficients for the area of Rio Grande harbor, RS, Brazil |
title |
Determinação dos coeficientes de difusão turbulenta para a região do Porto de Rio Grande, RS, Brasil |
spellingShingle |
Determinação dos coeficientes de difusão turbulenta para a região do Porto de Rio Grande, RS, Brasil Fontoura, Jose Antonio Scotti Eddy diffusion Fluorescent tracers Dispersion of pollutants Rodamine ‘B’ |
title_short |
Determinação dos coeficientes de difusão turbulenta para a região do Porto de Rio Grande, RS, Brasil |
title_full |
Determinação dos coeficientes de difusão turbulenta para a região do Porto de Rio Grande, RS, Brasil |
title_fullStr |
Determinação dos coeficientes de difusão turbulenta para a região do Porto de Rio Grande, RS, Brasil |
title_full_unstemmed |
Determinação dos coeficientes de difusão turbulenta para a região do Porto de Rio Grande, RS, Brasil |
title_sort |
Determinação dos coeficientes de difusão turbulenta para a região do Porto de Rio Grande, RS, Brasil |
author |
Fontoura, Jose Antonio Scotti |
author_facet |
Fontoura, Jose Antonio Scotti Niencheski, Luis Felipe Hax Antiqueira, Jose Antonio Fonseca de |
author_role |
author |
author2 |
Niencheski, Luis Felipe Hax Antiqueira, Jose Antonio Fonseca de |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Fontoura, Jose Antonio Scotti Niencheski, Luis Felipe Hax Antiqueira, Jose Antonio Fonseca de |
dc.subject.por.fl_str_mv |
Eddy diffusion Fluorescent tracers Dispersion of pollutants Rodamine ‘B’ |
topic |
Eddy diffusion Fluorescent tracers Dispersion of pollutants Rodamine ‘B’ |
description |
This work presents a study on the horizontal turbulent eddy diffusion for both inner part and shallow areas around of Rio Grande Harbor navigation channel, Patos Lagoon estuary, RS, Brazil. It was made through the monitoring of Rodamine ‘B’ dyeusing aerial photos and water samples. From the radiometric interpretation of aerial photos in concomitance with tracer concentration level measured on environment was determined two different diffusion modes, one into the navigation channel dominated by strong currents and other on shallow areas in agree with weak local hydrodynamics. The mean horizontal turbulent eddy diffusion (K) determined for whole event was about 10065 cm²/s. Into the channel was identified a crescent diffusion rate with relation to the diffusion time and advection length, meanwhile in shallow areas was identified one decelerated process. The same was observed to the along flow eddy diffusion (Kx) and cross flow eddy diffusion (Ky). It’s also verified which the longitudinal eddy diffusion (Kx) varied from two to three times higher than transversal eddy diffusion (Ky) all process long. In shallow areas was also identified a eceleration on ratio between Kx and Ky. This behavior suggests one more important dispersion process into the channel when compared with the marginal areas. |
publishDate |
2005 |
dc.date.issued.fl_str_mv |
2005 |
dc.date.accessioned.fl_str_mv |
2012-11-16T16:15:40Z |
dc.date.available.fl_str_mv |
2012-11-16T16:15:40Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
FONTOURA, José Antônio Scotti; NIENCHESKI, Luis Felipe Hax; ANTIQUEIRA, Jose Antonio. Determinação dos coeficientes de difusão turbulenta para a região do Porto de Rio Grande, RS, Brasil. Brazilian Journal of Aquatic Science and Technology, v. 9, n. 2, p. 87-92, 2005. Disponível em: <http://www6.univali.br/seer/index.php/bjast/article/view/593/504>. Acesso em: 20 jun. 2012. |
dc.identifier.uri.fl_str_mv |
http://repositorio.furg.br/handle/1/2773 |
identifier_str_mv |
FONTOURA, José Antônio Scotti; NIENCHESKI, Luis Felipe Hax; ANTIQUEIRA, Jose Antonio. Determinação dos coeficientes de difusão turbulenta para a região do Porto de Rio Grande, RS, Brasil. Brazilian Journal of Aquatic Science and Technology, v. 9, n. 2, p. 87-92, 2005. Disponível em: <http://www6.univali.br/seer/index.php/bjast/article/view/593/504>. Acesso em: 20 jun. 2012. |
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http://repositorio.furg.br/handle/1/2773 |
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por |
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por |
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info:eu-repo/semantics/openAccess |
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openAccess |
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