Using meshes to change the characteristics of simulated rainfall produced by spray nozzles
Autor(a) principal: | |
---|---|
Data de Publicação: | 2014 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10316/102614 https://doi.org/10.1016/S2095-6339(15)30007-1 |
Resumo: | Rainfall simulators have been used for many years contributing to the understanding of soil and water conservation processes. Nevertheless, rainfall simulators’ design and operation might be rather demanding for achieving specific rainfall intensity distributions and drop characteristics and are still open for improvement. This study explores the potential of combining spray nozzle simulators with meshes to change rainfall characteristics, namely drop properties (drop diameters and fall speeds). A rainfall simulator laboratory set-up was prepared that enabled the incorporation of different wire meshes beneath the spray nozzles. The tests conducted in this exploratory work included different types of spray nozzles, mesh materials (plastic and steel), square apertures and wire thicknesses, and positions of the meshes in relation to the nozzles. Rainfall intensity and drop size distribution and fall speed were analysed. Results showed that the meshes combined with nozzles increased the mean rainfall intensity on the 1 m2 control plot below the nozzle and altered the rain drops’ properties, by increasing the mass-weighted mean drop diameter, for example. |
id |
RCAP_9d0b2787d947631ae19a48a7db88dddf |
---|---|
oai_identifier_str |
oai:estudogeral.uc.pt:10316/102614 |
network_acronym_str |
RCAP |
network_name_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository_id_str |
7160 |
spelling |
Using meshes to change the characteristics of simulated rainfall produced by spray nozzlesRainfall simulatorsSpray nozzlemeshesDrop characteristicsRainfall simulators have been used for many years contributing to the understanding of soil and water conservation processes. Nevertheless, rainfall simulators’ design and operation might be rather demanding for achieving specific rainfall intensity distributions and drop characteristics and are still open for improvement. This study explores the potential of combining spray nozzle simulators with meshes to change rainfall characteristics, namely drop properties (drop diameters and fall speeds). A rainfall simulator laboratory set-up was prepared that enabled the incorporation of different wire meshes beneath the spray nozzles. The tests conducted in this exploratory work included different types of spray nozzles, mesh materials (plastic and steel), square apertures and wire thicknesses, and positions of the meshes in relation to the nozzles. Rainfall intensity and drop size distribution and fall speed were analysed. Results showed that the meshes combined with nozzles increased the mean rainfall intensity on the 1 m2 control plot below the nozzle and altered the rain drops’ properties, by increasing the mass-weighted mean drop diameter, for example.2014info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10316/102614http://hdl.handle.net/10316/102614https://doi.org/10.1016/S2095-6339(15)30007-1eng20956339Carvalho, Sílvia C. P.Lima, João L. M. P. deLima, M. Isabel P. deinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2022-10-04T20:31:35Zoai:estudogeral.uc.pt:10316/102614Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T21:19:34.004019Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Using meshes to change the characteristics of simulated rainfall produced by spray nozzles |
title |
Using meshes to change the characteristics of simulated rainfall produced by spray nozzles |
spellingShingle |
Using meshes to change the characteristics of simulated rainfall produced by spray nozzles Carvalho, Sílvia C. P. Rainfall simulators Spray nozzle meshes Drop characteristics |
title_short |
Using meshes to change the characteristics of simulated rainfall produced by spray nozzles |
title_full |
Using meshes to change the characteristics of simulated rainfall produced by spray nozzles |
title_fullStr |
Using meshes to change the characteristics of simulated rainfall produced by spray nozzles |
title_full_unstemmed |
Using meshes to change the characteristics of simulated rainfall produced by spray nozzles |
title_sort |
Using meshes to change the characteristics of simulated rainfall produced by spray nozzles |
author |
Carvalho, Sílvia C. P. |
author_facet |
Carvalho, Sílvia C. P. Lima, João L. M. P. de Lima, M. Isabel P. de |
author_role |
author |
author2 |
Lima, João L. M. P. de Lima, M. Isabel P. de |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Carvalho, Sílvia C. P. Lima, João L. M. P. de Lima, M. Isabel P. de |
dc.subject.por.fl_str_mv |
Rainfall simulators Spray nozzle meshes Drop characteristics |
topic |
Rainfall simulators Spray nozzle meshes Drop characteristics |
description |
Rainfall simulators have been used for many years contributing to the understanding of soil and water conservation processes. Nevertheless, rainfall simulators’ design and operation might be rather demanding for achieving specific rainfall intensity distributions and drop characteristics and are still open for improvement. This study explores the potential of combining spray nozzle simulators with meshes to change rainfall characteristics, namely drop properties (drop diameters and fall speeds). A rainfall simulator laboratory set-up was prepared that enabled the incorporation of different wire meshes beneath the spray nozzles. The tests conducted in this exploratory work included different types of spray nozzles, mesh materials (plastic and steel), square apertures and wire thicknesses, and positions of the meshes in relation to the nozzles. Rainfall intensity and drop size distribution and fall speed were analysed. Results showed that the meshes combined with nozzles increased the mean rainfall intensity on the 1 m2 control plot below the nozzle and altered the rain drops’ properties, by increasing the mass-weighted mean drop diameter, for example. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014 |
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.uri.fl_str_mv |
http://hdl.handle.net/10316/102614 http://hdl.handle.net/10316/102614 https://doi.org/10.1016/S2095-6339(15)30007-1 |
url |
http://hdl.handle.net/10316/102614 https://doi.org/10.1016/S2095-6339(15)30007-1 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
20956339 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
|
_version_ |
1799134089919332352 |