Simulation of fully developed laminar free convection flow between vertical parallel flat plates

Héctor Espinoza-Roman

doi:10.36561/ING.30.16

Autores

Héctor Espinoza-Roman Fundación Universitaria Antonio de Arévalo, Colombia https://orcid.org/0000-0002-2861-2442

DOI:

https://doi.org/10.36561/ING.30.16

Palavras-chave:

Transferência de calor, Ventilação passiva, Chaminé solar, CFD

Resumo

Este estudo apresenta uma investigação numérica da convecção livre laminar entre placas verticais paralelas com temperaturas de parede uniformes e assimétricas. A parede direita é mantida a uma temperatura mais alta que a esquerda. O fluido entra no canal a uma temperatura menor ou igual à da parede mais fria. Utilizando o método de volumes finitos no OpenFOAM v13, as equações que governam o processo são resolvidas e validadas em comparação com soluções analíticas clássicas. Um estudo sistemático de convergência da malha garante a independência espacial. Os resultados mostram que, embora o perfil linear de temperatura seja capturado com precisão em malhas grosseiras, o perfil cúbico de velocidade requer maior resolução para maior precisão. As descobertas validam a metodologia numérica e fornecem informações cruciais sobre os requisitos de malha para simular com precisão fluxos de convecção natural totalmente desenvolvidos em canais verticais.

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