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ENCIT 2020
18th Brazilian Congress of Thermal Sciences and Engineering
Thermal Development in The Flow of Oils in Bifurcations
Submission Author:
Flavio Peres Amado , RJ , Brazil
Co-Authors:
Flavio Peres Amado, Victor Hugo Mondaini Corradi, Alessandro Antunes, Paulo Ricardo Valentim, Nilton Paiva de Carvalho Junior
Presenter: Flavio Peres Amado
doi://10.26678/ABCM.ENCIT2020.CIT20-0024
Abstract
This manuscript deals with qualitative and quantitative analysis of the region of thermal development in bifurcations, where four families of oils flow, namely, biodiesels, edibles, hydraulics and lubricants. Ultimately, this reality translates into the variation in fluid viscosity and density. The flow rate used is that which induces a Reynolds Number bordering on laminar flow. CFD-type simulations were carried out in finite differences and through a commercial package. Results show that the thermal developing regions presented in the simulated universe are quite morphologically similar to the flow developing region. That is an expected fact, since the energy equation, which determines the temperature gradient, uses the velocity field in its calculations, predicted by the moment equations. The lengths of the region of interest, measured in the images generated in the simulations, did not find a good coincidence of values with the lengths calculated by correlations found in the related literature. Thus, a new correlation is proposed for the universe tested in this paper. This manuscript closes the study cycle of the flow and thermal developing regions. An experimental apparatus that confirms the conclusions reached in this cycle is recommended.
Keywords
Thermal development, Bifurcations, viscosity
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