Modeling of atmospheric dispersion with dry deposition: an application on a research reactor
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Revista Brasileira de Meteorologia (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-77862014000300002 |
Resumo: | An analytical solution of the three dimensional advection-diffusion equations has been formulated to simulate the dispersion of pollutants in the planetary boundary layer. The solution is based on the assumption that the concentration distribution of pollutants in the crosswind direction has a Gaussian shape and the wind speed is constant. The analytical solution has been obtained in two cases where, the vertical eddy diffusivity is taken to be dependent on: (a) the downwind distance x only and (b) the vertical height z only. The dry deposition of the diffusing particles on the ground is taken into account throughout the boundary conditions. The resulting analytical formulae have been applied to calculate the concentration of I-131 using data collected from the experiments conducted to collect air samples around the Research Reactor. Statistical measures are utilized in the comparison between the predicted and observed concentrations. The results are discussed and presented in tables and illustrative figures. |
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Modeling of atmospheric dispersion with dry deposition: an application on a research reactorAtmospheric dispersionEddy diffusivitydry depositionmodel evaluationAn analytical solution of the three dimensional advection-diffusion equations has been formulated to simulate the dispersion of pollutants in the planetary boundary layer. The solution is based on the assumption that the concentration distribution of pollutants in the crosswind direction has a Gaussian shape and the wind speed is constant. The analytical solution has been obtained in two cases where, the vertical eddy diffusivity is taken to be dependent on: (a) the downwind distance x only and (b) the vertical height z only. The dry deposition of the diffusing particles on the ground is taken into account throughout the boundary conditions. The resulting analytical formulae have been applied to calculate the concentration of I-131 using data collected from the experiments conducted to collect air samples around the Research Reactor. Statistical measures are utilized in the comparison between the predicted and observed concentrations. The results are discussed and presented in tables and illustrative figures.Sociedade Brasileira de Meteorologia2014-09-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-77862014000300002Revista Brasileira de Meteorologia v.29 n.3 2014reponame:Revista Brasileira de Meteorologia (Online)instname:Sociedade Brasileira de Meteorologia (SBMET)instacron:SBMET10.1590/0102-778620130654info:eu-repo/semantics/openAccessEssa,Khaled S. M.Etman,Soad M.El-Otaify,Maha S.eng2014-08-27T00:00:00Zoai:scielo:S0102-77862014000300002Revistahttp://www.rbmet.org.br/port/index.phpONGhttps://old.scielo.br/oai/scielo-oai.php||rbmet@rbmet.org.br1982-43510102-7786opendoar:2014-08-27T00:00Revista Brasileira de Meteorologia (Online) - Sociedade Brasileira de Meteorologia (SBMET)false |
dc.title.none.fl_str_mv |
Modeling of atmospheric dispersion with dry deposition: an application on a research reactor |
title |
Modeling of atmospheric dispersion with dry deposition: an application on a research reactor |
spellingShingle |
Modeling of atmospheric dispersion with dry deposition: an application on a research reactor Essa,Khaled S. M. Atmospheric dispersion Eddy diffusivity dry deposition model evaluation |
title_short |
Modeling of atmospheric dispersion with dry deposition: an application on a research reactor |
title_full |
Modeling of atmospheric dispersion with dry deposition: an application on a research reactor |
title_fullStr |
Modeling of atmospheric dispersion with dry deposition: an application on a research reactor |
title_full_unstemmed |
Modeling of atmospheric dispersion with dry deposition: an application on a research reactor |
title_sort |
Modeling of atmospheric dispersion with dry deposition: an application on a research reactor |
author |
Essa,Khaled S. M. |
author_facet |
Essa,Khaled S. M. Etman,Soad M. El-Otaify,Maha S. |
author_role |
author |
author2 |
Etman,Soad M. El-Otaify,Maha S. |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Essa,Khaled S. M. Etman,Soad M. El-Otaify,Maha S. |
dc.subject.por.fl_str_mv |
Atmospheric dispersion Eddy diffusivity dry deposition model evaluation |
topic |
Atmospheric dispersion Eddy diffusivity dry deposition model evaluation |
description |
An analytical solution of the three dimensional advection-diffusion equations has been formulated to simulate the dispersion of pollutants in the planetary boundary layer. The solution is based on the assumption that the concentration distribution of pollutants in the crosswind direction has a Gaussian shape and the wind speed is constant. The analytical solution has been obtained in two cases where, the vertical eddy diffusivity is taken to be dependent on: (a) the downwind distance x only and (b) the vertical height z only. The dry deposition of the diffusing particles on the ground is taken into account throughout the boundary conditions. The resulting analytical formulae have been applied to calculate the concentration of I-131 using data collected from the experiments conducted to collect air samples around the Research Reactor. Statistical measures are utilized in the comparison between the predicted and observed concentrations. The results are discussed and presented in tables and illustrative figures. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-09-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-77862014000300002 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0102-77862014000300002 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/0102-778620130654 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Sociedade Brasileira de Meteorologia |
publisher.none.fl_str_mv |
Sociedade Brasileira de Meteorologia |
dc.source.none.fl_str_mv |
Revista Brasileira de Meteorologia v.29 n.3 2014 reponame:Revista Brasileira de Meteorologia (Online) instname:Sociedade Brasileira de Meteorologia (SBMET) instacron:SBMET |
instname_str |
Sociedade Brasileira de Meteorologia (SBMET) |
instacron_str |
SBMET |
institution |
SBMET |
reponame_str |
Revista Brasileira de Meteorologia (Online) |
collection |
Revista Brasileira de Meteorologia (Online) |
repository.name.fl_str_mv |
Revista Brasileira de Meteorologia (Online) - Sociedade Brasileira de Meteorologia (SBMET) |
repository.mail.fl_str_mv |
||rbmet@rbmet.org.br |
_version_ |
1752122084882907136 |