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ENCIT 2020
18th Brazilian Congress of Thermal Sciences and Engineering
THERMAL ANALYSIS OF CORE-ANNULAR FLOW WITH TWO IMMISCIBLE LIQUIDS
Submission Author:
Lívia Mantuano Corrêa , RJ
Co-Authors:
Lívia Mantuano Corrêa, Daniel Chalhub, Renan de Souza Teixeira
Presenter: Lívia Mantuano Corrêa
doi://10.26678/ABCM.ENCIT2020.CIT20-0139
Abstract
Studies among the annular flow in mineral origin products have the outcome as an extremely interesting solution for reducing the global viscosity of the flow. In the present paper, a core-annular flow with two immiscible liquids is thermally analyzed using the Generalized Integral Transformation Technique (GITT). The dimensionless steady-state problem is defined in a semi-infinite circular duct with prescribed wall temperature and a single domain. Through mathematical operations, a generalized formulation is described and the results are analyzed. The integral balance is used to calculate the Nusselt number, whose distribution is studied during the duct flow for the simulated cases as well as its convergence rate by GITT. The results are compared with the literature and the thermal profile is presented in particular positions.
Keywords
Heat transfer, Liquid-liquid flow, Generalized Integral Transform Technique (GITT)
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