2023-02-232023-02-232019-12-13MIYAGAWA, Helder Kiyoshi. Análise da transferência de calor convectiva por transformada integral em canais com paredes onduladas. Orientador: João Nazareno Nonato Quaresma. 2019. 142 f. Tese (Doutorado em Engenharia de Recursos Naturais da Amazônia) - Universidade Federal do Pará, Instituto de Tecnologia, Belém, 2019. Disponível em: http://repositorio.ufpa.br:8080/jspui/handle/2011/15344. Acesso em:.https://repositorio.ufpa.br/handle/2011/15344The hybrid numerical-analytical approach known as the Generalized Integral Transformation Technique (GITT) is employed in the solution of the Navier-Stokes and energy equations that mathematically model the convective heat transfer in corrugated wall channels. The flow is considered laminar, incompressible, and two-dimensional involving a Newtonian fluid with temperature-independent physical properties, while wall temperatures are kept constant along the length of the channel. The streamfunction formulation is adopted, which eliminates the pressure field and automatically satisfies the continuity equation. Extensive convergence analyses are performed for the streamfunction and temperature fields, as well as for the product of friction factor by the Reynolds number and the local Nusselt number to demonstrate the robustness of the method. Verification of GITT results is also performed by comparing the centerline velocity, product of friction factor by the Reynolds number, average temperature, and local Nusselt number with those results obtained with the commercial COMSOL Multiphysics simulation software showing good agreement. The influence of parameters such as Reynolds number, wavy wall amplitude, number of waves, and phase between wall corrugations on the fields of velocity, temperature, and entropy generation are also analyzed, demonstrating their importance for convective heat transfer intensification and energy optimization.Acesso AbertoAttribution-NonCommercial-NoDerivs 3.0 Brazilhttp://creativecommons.org/licenses/by-nc-nd/3.0/br/Transformação integral generalizadaConvecção forçadaMelhoria de transferência de calorCanais de parede onduladaAnálise da transferência de calor convectiva por transformada integral em canais com paredes onduladasAnalysis of the convective heat transfer by integral transforms in channels with wavy wallsTeseCNPQ::ENGENHARIASENGENHARIA DE PROCESSOSUSO E TRANSFORMAÇÃO DE RECURSOS NATURAIS