CFD tool application in predicting the behavior of a centrifugal fan designed by one-dimensional theory

Detalhes bibliográficos
Autor(a) principal: Rosa, Henrique Marcio Pereira
Data de Publicação: 2021
Outros Autores: Toledo, Gabriela Pereira
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Research, Society and Development
Texto Completo: https://rsdjournal.org/index.php/rsd/article/view/19653
Resumo: Computational fluid dynamics (CFD) is the most current technology in the fluid flow study. Experimental methods for predicting the turbomachinery performance involve greater time consumption and financial resources compared to the CFD approach. The purpose of this article is to present the analysis of CFD simulation results in a centrifugal fan. The impeller was calculated using the one-dimensional theory and the volute the principle of constant angular momentum. The ANSYS-CFX software was used for the simulation. The turbulence model adopted was the SST. The simulation provided the characteristic curves, the pressure and velocity distribution, and the static and total pressure values at impeller and volute exit. An analysis of the behavior of the pressure plots, and the loss and recovery of pressure in the volute was performed. The results indicated the characteristic curves, the pressure and velocity distribution were consistent with the turbomachinery theory. The pressure values showed the static pressure at volute exit was smaller than impeller exit for some flow rate. It caused the pressure recovery coefficient negative.  This work indicated to be possible design a centrifugal fan applying the one-dimensional theory and optimize it with the CFD tool.
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spelling CFD tool application in predicting the behavior of a centrifugal fan designed by one-dimensional theoryAplicación de la herramienta CFD para predecir el comportamiento de un ventilador centrífugo disenado con la teoria unidimensionalAplicação da ferramenta CFD na previsão do comportamento de um ventilador centrífugo projetado com a teoria unidimensionalCurvas característicasVolutaParcelas de pressãoPerdas.Curvas característicasVolutaCuotas de presiónPérdidas.Characteristic curvesVolutePressure plotsLosses.Computational fluid dynamics (CFD) is the most current technology in the fluid flow study. Experimental methods for predicting the turbomachinery performance involve greater time consumption and financial resources compared to the CFD approach. The purpose of this article is to present the analysis of CFD simulation results in a centrifugal fan. The impeller was calculated using the one-dimensional theory and the volute the principle of constant angular momentum. The ANSYS-CFX software was used for the simulation. The turbulence model adopted was the SST. The simulation provided the characteristic curves, the pressure and velocity distribution, and the static and total pressure values at impeller and volute exit. An analysis of the behavior of the pressure plots, and the loss and recovery of pressure in the volute was performed. The results indicated the characteristic curves, the pressure and velocity distribution were consistent with the turbomachinery theory. The pressure values showed the static pressure at volute exit was smaller than impeller exit for some flow rate. It caused the pressure recovery coefficient negative.  This work indicated to be possible design a centrifugal fan applying the one-dimensional theory and optimize it with the CFD tool.La dinámica de fluidos computacional (CFD) es la tecnología más actual en el estudio del flujo de fluidos. Los métodos experimentales para predecir el rendimiento de las turbomáquinas implican un mayor consumo de tiempo y recursos financieros en comparación con el enfoque CFD. El propósito de este artículo es presentar el análisis de resultados de simulación CFD de un ventilador centrífugo. El rotor se calculó utilizando la teoría unidimensional y la voluta el principio de momento angular constante. Para la simulación se utilizó el software ANSYS-CFX. El modelo de turbulencia adoptado fue el SST. La simulación proporcionó las curvas características, la distribución de presión y velocidad, y los valores de presión estática y total en la salida del impulsor y la voluta. Se realizó un análisis del comportamiento de las gráficas de presión, y la pérdida y recuperación de presión en la voluta. Los resultados indicaron que la curva característica y la distribución de la presión fueron coherentes con la teoría de las turbomáquinas. Los valores de presión mostraron que la presión estática en la salida de la voluta fue menor que en la salida del rotor para algunos flujos. Esto provocó coeficientes de recuperación de presión negativos. Este trabajo indica que es posible diseñar un ventilador centrífugo aplicando la teoría unidimensional y optimizarlo con la herramienta CFD.A dinâmica de fluidos computacional (CFD) é a tecnologia mais atual no estudo de escoamento de fluidos. Métodos experimentais para prever o desempenho de turbomáquinas envolvem maior consumo de tempo e recursos financeiros em comparação com a abordagem CFD. A proposta deste artigo é apresentar a análise dos resultados de simulação CFD de um ventilador centrífugo. O rotor foi calculado utilizando a teoria unidimensional e a voluta o princípio do momento angular constante. Para a simulação foi utilizado o software ANSYS-CFX. O modelo de turbulência adotado foi o SST. A simulação forneceu as curvas características, a distribuição de pressão e velocidade, e valores de pressão estática e total na saída do rotor e da voluta.  Uma análise do comportamento das parcelas de pressão, e da perda e recuperação de pressão na voluta foi realizada. Os resultados indicaram que a curva característica e a distribuição de pressão foram coerentes com a teoria das turbomáquinas. Os valores de pressão mostraram que a pressão estática na saída da voluta foi menor que a da saída do rotor para algumas vazões. Isto causou coeficientes de recuperação de pressão negativos. Este trabalho indica que é possível projetar um ventilador centrífugo aplicando a teoria unidimensional e otimizá-lo com a ferramenta CFD.Research, Society and Development2021-09-25info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://rsdjournal.org/index.php/rsd/article/view/1965310.33448/rsd-v10i12.19653Research, Society and Development; Vol. 10 No. 12; e412101219653Research, Society and Development; Vol. 10 Núm. 12; e412101219653Research, Society and Development; v. 10 n. 12; e4121012196532525-3409reponame:Research, Society and Developmentinstname:Universidade Federal de Itajubá (UNIFEI)instacron:UNIFEIenghttps://rsdjournal.org/index.php/rsd/article/view/19653/18362Copyright (c) 2021 Henrique Marcio Pereira Rosa; Gabriela Pereira Toledohttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessRosa, Henrique Marcio PereiraToledo, Gabriela Pereira2021-11-14T20:26:51Zoai:ojs.pkp.sfu.ca:article/19653Revistahttps://rsdjournal.org/index.php/rsd/indexPUBhttps://rsdjournal.org/index.php/rsd/oairsd.articles@gmail.com2525-34092525-3409opendoar:2024-01-17T09:39:31.043342Research, Society and Development - Universidade Federal de Itajubá (UNIFEI)false
dc.title.none.fl_str_mv CFD tool application in predicting the behavior of a centrifugal fan designed by one-dimensional theory
Aplicación de la herramienta CFD para predecir el comportamiento de un ventilador centrífugo disenado con la teoria unidimensional
Aplicação da ferramenta CFD na previsão do comportamento de um ventilador centrífugo projetado com a teoria unidimensional
title CFD tool application in predicting the behavior of a centrifugal fan designed by one-dimensional theory
spellingShingle CFD tool application in predicting the behavior of a centrifugal fan designed by one-dimensional theory
Rosa, Henrique Marcio Pereira
Curvas características
Voluta
Parcelas de pressão
Perdas.
Curvas características
Voluta
Cuotas de presión
Pérdidas.
Characteristic curves
Volute
Pressure plots
Losses.
title_short CFD tool application in predicting the behavior of a centrifugal fan designed by one-dimensional theory
title_full CFD tool application in predicting the behavior of a centrifugal fan designed by one-dimensional theory
title_fullStr CFD tool application in predicting the behavior of a centrifugal fan designed by one-dimensional theory
title_full_unstemmed CFD tool application in predicting the behavior of a centrifugal fan designed by one-dimensional theory
title_sort CFD tool application in predicting the behavior of a centrifugal fan designed by one-dimensional theory
author Rosa, Henrique Marcio Pereira
author_facet Rosa, Henrique Marcio Pereira
Toledo, Gabriela Pereira
author_role author
author2 Toledo, Gabriela Pereira
author2_role author
dc.contributor.author.fl_str_mv Rosa, Henrique Marcio Pereira
Toledo, Gabriela Pereira
dc.subject.por.fl_str_mv Curvas características
Voluta
Parcelas de pressão
Perdas.
Curvas características
Voluta
Cuotas de presión
Pérdidas.
Characteristic curves
Volute
Pressure plots
Losses.
topic Curvas características
Voluta
Parcelas de pressão
Perdas.
Curvas características
Voluta
Cuotas de presión
Pérdidas.
Characteristic curves
Volute
Pressure plots
Losses.
description Computational fluid dynamics (CFD) is the most current technology in the fluid flow study. Experimental methods for predicting the turbomachinery performance involve greater time consumption and financial resources compared to the CFD approach. The purpose of this article is to present the analysis of CFD simulation results in a centrifugal fan. The impeller was calculated using the one-dimensional theory and the volute the principle of constant angular momentum. The ANSYS-CFX software was used for the simulation. The turbulence model adopted was the SST. The simulation provided the characteristic curves, the pressure and velocity distribution, and the static and total pressure values at impeller and volute exit. An analysis of the behavior of the pressure plots, and the loss and recovery of pressure in the volute was performed. The results indicated the characteristic curves, the pressure and velocity distribution were consistent with the turbomachinery theory. The pressure values showed the static pressure at volute exit was smaller than impeller exit for some flow rate. It caused the pressure recovery coefficient negative.  This work indicated to be possible design a centrifugal fan applying the one-dimensional theory and optimize it with the CFD tool.
publishDate 2021
dc.date.none.fl_str_mv 2021-09-25
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://rsdjournal.org/index.php/rsd/article/view/19653
10.33448/rsd-v10i12.19653
url https://rsdjournal.org/index.php/rsd/article/view/19653
identifier_str_mv 10.33448/rsd-v10i12.19653
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://rsdjournal.org/index.php/rsd/article/view/19653/18362
dc.rights.driver.fl_str_mv Copyright (c) 2021 Henrique Marcio Pereira Rosa; Gabriela Pereira Toledo
https://creativecommons.org/licenses/by/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2021 Henrique Marcio Pereira Rosa; Gabriela Pereira Toledo
https://creativecommons.org/licenses/by/4.0
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Research, Society and Development
publisher.none.fl_str_mv Research, Society and Development
dc.source.none.fl_str_mv Research, Society and Development; Vol. 10 No. 12; e412101219653
Research, Society and Development; Vol. 10 Núm. 12; e412101219653
Research, Society and Development; v. 10 n. 12; e412101219653
2525-3409
reponame:Research, Society and Development
instname:Universidade Federal de Itajubá (UNIFEI)
instacron:UNIFEI
instname_str Universidade Federal de Itajubá (UNIFEI)
instacron_str UNIFEI
institution UNIFEI
reponame_str Research, Society and Development
collection Research, Society and Development
repository.name.fl_str_mv Research, Society and Development - Universidade Federal de Itajubá (UNIFEI)
repository.mail.fl_str_mv rsd.articles@gmail.com
_version_ 1797052754557927424

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