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Estudo dos efeitos dinâmicos em condutas de PVC durante regimes tansitórios

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Estudo dos efeitos dinâmicos em condutas de PVC durante regimes tansitórios

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dc.contributor.author Kepler, Alexandre es_ES
dc.contributor.author Cameira, Dídia I. es_ES
dc.contributor.author Ribeiro, Luisa F. es_ES
dc.date.accessioned 2020-05-05T16:30:55Z
dc.date.available 2020-05-05T16:30:55Z
dc.date.issued 2009-06-30
dc.identifier.issn 1134-2196
dc.identifier.uri http://hdl.handle.net/10251/142406
dc.description.abstract [PT] A teoria clássica do golpe de aríete é usualmente utilizada para a modelaçao de sistemas de condutas em pressão e, tipicamente, considera que a atenuação de uma onda de pressão numa conduta forçada ocorre principalmente devido ao efeito do atrito calculado para condiçoes de escoamento permanente. No entanto, para a descrição do comportamento hidráulico de sistemas existentes, debe ser dada atenção especial aos diferentes efeitos dinâmicos relacionados com a dissipação de energia durante a ocurrência de transitórios hidráulicos. Além disso, a teoria clássica é consideravelmente imprecisa para condutas de plástico (como o polietileno e o policloreto de vinilo), as quais são caracterizadas por comportamento reológico viscoelástico. No presente trabalho, um simulador hidráulico, que incorpora os efeitos de factor de atrito variável e da viscoelasticidade do material da conduta, foi utilizado para análise de transitórios hidráulicos em um sistema experimental composto por condutas de policloreto de vinilo (PVC). Os resultados numéricos demonstraram que, quando apenas o factor de atrito variável é considerado nas simulações, a atenuação e a dispersão das ondas de pressão observadas não são reproduzidas a contento. A incorporação do comportamento viscoelástico do material da conducta resultou em bons ajustamentos dos valores simulados aos dados de pressão medidos numa instalação experimental. es_ES
dc.description.sponsorship A Fundação de Amparo à Pesquisa do Estado `de São Paulo (FAPESP), pela bolsa de estudos de doutorado concedida ao primeiro autor, e à Coordenadoria de Aperfeiçoamento de Pessoal de Nível Superior (CAPES), pela bolsa de estudos de estágio pós-doutoral no exterior concedida também ao primeiro autor. es_ES
dc.language Portugués es_ES
dc.publisher Universitat Politècnica de València es_ES
dc.relation.ispartof Ingeniería del agua es_ES
dc.rights Reserva de todos los derechos es_ES
dc.title Estudo dos efeitos dinâmicos em condutas de PVC durante regimes tansitórios es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.4995/ia.2009.2948
dc.rights.accessRights Abierto es_ES
dc.description.bibliographicCitation Kepler, A.; Cameira, DI.; Ribeiro, LF. (2009). Estudo dos efeitos dinâmicos em condutas de PVC durante regimes tansitórios. Ingeniería del agua. 16(2):95-114. https://doi.org/10.4995/ia.2009.2948 es_ES
dc.description.accrualMethod OJS es_ES
dc.relation.publisherversion https://doi.org/10.4995/ia.2009.2948 es_ES
dc.description.upvformatpinicio 95 es_ES
dc.description.upvformatpfin 114 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 16 es_ES
dc.description.issue 2 es_ES
dc.identifier.eissn 1886-4996
dc.relation.pasarela OJS\2948 es_ES
dc.contributor.funder Fundação de Amparo à Pesquisa do Estado de São Paulo es_ES
dc.contributor.funder Coordenaçao de Aperfeiçoamento de Pessoal de Nível Superior, Brasil es_ES
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