Análise dos efeitos razão de aspecto e inclinação na convecção natural em cavidades via transformação integral

• Ano de defesa: 2002
• Autor(a) principal: Silva, Marcos de Souza e
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de Uberlândia; BR; Programa de Pós-graduação em Engenharia Mecânica; Engenharias; UFU
• Palavras-chave em Português: Cavidade retangular; Razão de aspecto; Ângulo de inclinação; Técnica da transformada integral generalizada; Retangular cavity; Aspect radio; Inclination angle; Generalized integral transform technique; CNPQ::ENGENHARIAS::ENGENHARIA MECANICA
• Link de acesso: https://repositorio.ufu.br/handle/123456789/15028

In this work, the effects of the aspect radio and inclination angle in the convection heat transfer inside a square cavity are analyzed through integral transformation. The numerical simulations were made in square and plane cavity in a fluid with constant and variable properties and identifying the effect of the temperature variations. Varying the geometry of the cavity and its inclination it was identified the most sensitive properties at the temperature variations, as well as the geometric combinations which optimize the convection heat transfer. The Generalized Integral Transform Technique (JLWW) was capable to simulate the physical phenomenon successfully, capturing recirculations in critical convective cases numerically. The correlations were established between the rate of convection heat transfer and the aspect radio and the inclination angle of the cavity.