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1. Identificação
Tipo de ReferênciaArtigo em Revista Científica (Journal Article)
Sitemtc-m16d.sid.inpe.br
Código do Detentorisadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S
Identificador8JMKD3MGP7W/3A49M9E
Repositóriosid.inpe.br/mtc-m19/2011/07.14.16.41   (acesso restrito)
Última Atualização2011:10.18.11.22.09 (UTC) administrator
Repositório de Metadadossid.inpe.br/mtc-m19/2011/07.14.16.41.11
Última Atualização dos Metadados2021:07.28.22.35.46 (UTC) administrator
Chave SecundáriaINPE--PRE/
ISSN0735-1933
Chave de CitaçãoRivasGarcAssa:2011:FoTuHe
TítuloForced turbulent heat convenction in a square duct with non-uniform wall temperature
Ano2011
MêsAug.
Data de Acesso03 maio 2024
Tipo SecundárioPRE PI
Número de Arquivos1
Tamanho1162 KiB
2. Contextualização
Autor1 Rivas, G. A.
2 Garcia, Ezio Castejon
3 Assato, M.
Grupo1
2 LIT-LIT-INPE-MCT-BR
Afiliação1
2 Instituto Nacional de Pesquisas Espaciais (INPE)
Endereço de e-Mailsecretaria.cpa@dir.inpe.br
RevistaInternational Communications in Heat and Mass Tranfer
Volume38
Número7
Páginas884-851
Nota SecundáriaB3_BIOTECNOLOGIA B2_CIÊNCIAS_BIOLÓGICAS_I A2_ENGENHARIAS_II A2_ENGENHARIAS_III B1_ENGENHARIAS_IV
Histórico (UTC)2011-12-12 12:12:18 :: secretaria.cpa@dir.inpe.br -> administrator :: 2011
2021-07-28 22:35:46 :: administrator -> marciana :: 2011
3. Conteúdo e estrutura
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Estágio do Conteúdoconcluido
Transferível1
Tipo do ConteúdoExternal Contribution
Tipo de Versãopublisher
Palavras-ChaveHeat transfer Numerical methods Forced turbulent heat convection Non-uniform wall temperature Square ducts
ResumoIn the present work, the numerical simulation to calculate the problem of the turbulent convection with nonuniform wall temperature in a square cross-section duct was adopted. To solve this problem some assumptions for the flow, such as: the condition of fully developed turbulence and incompressible flow have been assumed. The methodology of the dimensionless energy equation was used to calculate the fluid temperature field in the square cross-section in function of the non-uniform wall temperatures prescribed. Numerical simulations were done using two different turbulent models to resolve the momentum equations and two more models to resolve the energy equation. The models of turbulence kε Nonlinear Eddy Viscosity Model (NLEVM) and the Reynolds Stress Model (RSM) were used to determine the turbulent intensities as well as the profiles of axial and secondary mean velocities. The turbulence model RSM was simulated using a commercial software. The thermal field was determined from other two models: Simple Eddy Diffusivity (SED), based in the hypothesis of the constant turbulent Prandtl number; and Generalized Gradient Diffusion Hypothesis (GGDH). In this last model, as the turbulent heat transfer depends on the shear tensions, the anisotropy is considered. These two last equation models of the energy equation of the fluid have been implemented in FORTRAN, a code of programming. The performances of the models were evaluated by validating them based in the experimental and numerical results published in the literature. Two important parameters of great interest in engineering are presented: the friction factor and the Nusselt number. The results of this investigation allow the evaluation of the behavior of the turbulent flow and convective heat fluxes for different square cross-sectional sections throughout the direction of the main flow, which is mainly influenced by the temperature distribution in the wall.
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4. Condições de acesso e uso
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5. Fontes relacionadas
Repositório Espelhosid.inpe.br/mtc-m19@80/2009/08.21.17.02.53
Unidades Imediatamente Superiores8JMKD3MGPCW/444BQ9E
DivulgaçãoWEBSCI; PORTALCAPES; COMPENDEX.
Acervo Hospedeirosid.inpe.br/mtc-m19@80/2009/08.21.17.02
6. Notas
Campos Vaziosalternatejournal archivist callnumber copyholder copyright creatorhistory descriptionlevel doi electronicmailaddress format isbn label lineage mark nextedition notes orcid parameterlist parentrepositories previousedition previouslowerunit progress project readergroup resumeid rightsholder schedulinginformation secondarydate session shorttitle sponsor subject targetfile tertiarymark tertiarytype typeofwork url
7. Controle da descrição
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