A Hybrid Analytical-Numerical Solution to the Thermal Problem inside Biconical Ducts

In this work was presented a hybrid analytical-numerical solution to heat transfer problem of thermally developing Newtonian laminar flow inside biconical ducts employing the Generalized Integral Transform Technique (GITT). In order to facilitate the analytical treatment and the application of the b...

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Detalhes bibliográficos
Autores: Alves, Thiago Antonini, Verdú Ramos, Ricardo Alan, Macedo Maia, Cassio Roberto
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2018
País:Brasil
Recursos:Universidade Estadual de Londrina (UEL)
Repositorio:Revista Semina: Ciências Exatas e Tecnológicas (Online)
Idioma:portugués
OAI Identifier:oai:ojs2.ojs.uel.br:article/24793
Acesso em linha:https://ojs.uel.br/revistas/uel/index.php/semexatas/article/view/24793
Access Level:acceso abierto
Palavra-chave:Integral Transform
Conformal Transform
Forced Convection
Biconical
Engineering
Transformada Integral
Transformação Conforme
Convecção Forçada
Bicônico
Transferência de Calor
Descrição
Resumo:In this work was presented a hybrid analytical-numerical solution to heat transfer problem of thermally developing Newtonian laminar flow inside biconical ducts employing the Generalized Integral Transform Technique (GITT). In order to facilitate the analytical treatment and the application of the boundary conditions, a Conformal Transform was used to change the domain into a more suitable coordinate system. Thereafter, the GITT was applied on the energy equation to obtain the temperature distribution. Numerical results were obtained for thermal parameters of interest, such as: bulk mean temperature, local and mean Nusselt number, and thermal entry length.