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Effects of scale and Froude number on the hydraulics of waste stabilization ponds.
Vieira, Isabela De Luna; Da Silva, Jhonatan Barbosa; Ide, Carlos Nobuyoshi; Janzen, Johannes Gérson.
Afiliação
  • Vieira IL; Engineer at Zortéa Construções Ltda, Campo Grande, Brazil.
  • Da Silva JB; Faculty of Engineering, Architecture and Urban Planning and Geography, Federal University of Mato Grosso do Sul, Campo Grande, Brazil E-mail: johannesjanzen@gmail.com.
  • Ide CN; Faculty of Engineering, Architecture and Urban Planning and Geography, Federal University of Mato Grosso do Sul, Campo Grande, Brazil E-mail: johannesjanzen@gmail.com.
  • Janzen JG; Faculty of Engineering, Architecture and Urban Planning and Geography, Federal University of Mato Grosso do Sul, Campo Grande, Brazil E-mail: johannesjanzen@gmail.com.
Water Sci Technol ; 77(1-2): 239-247, 2018 Jan.
Article em En | MEDLINE | ID: mdl-29339623
This paper presents the findings from a series of computational fluid dynamics simulations to estimate the effect of scale and Froude number on hydraulic performance and effluent pollutant fraction of scaled waste stabilization ponds designed using Froude similarity. Prior to its application, the model was verified by comparing the computational and experimental results of a model scaled pond, showing good agreement and confirming that the model accurately reproduces the hydrodynamics and tracer transport processes. Our results showed that the scale and the interaction between scale and Froude number has an effect on the hydraulics of ponds. At 1:5 scale, the increase of scale increased short-circuiting and decreased mixing. Furthermore, at 1:10 scale, the increase of scale decreased the effluent pollutant fraction. Since the Reynolds effect cannot be ignored, a ratio of Reynolds and Froude numbers was suggested to predict the effluent pollutant fraction for flows with different Reynolds numbers.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Lagoas / Eliminação de Resíduos Líquidos / Modelos Teóricos Tipo de estudo: Prognostic_studies Idioma: En Revista: Water Sci Technol Assunto da revista: SAUDE AMBIENTAL / TOXICOLOGIA Ano de publicação: 2018 Tipo de documento: Article País de afiliação: Brasil País de publicação: Reino Unido
Texto completo
Adicionar na Minha BVS
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XML
PubMed Links
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Lagoas / Eliminação de Resíduos Líquidos / Modelos Teóricos Tipo de estudo: Prognostic_studies Idioma: En Revista: Water Sci Technol Assunto da revista: SAUDE AMBIENTAL / TOXICOLOGIA Ano de publicação: 2018 Tipo de documento: Article País de afiliação: Brasil País de publicação: Reino Unido