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ENCIT 2020
18th Brazilian Congress of Thermal Sciences and Engineering
ANALYSIS OF LIQUID-VAPOR INTERFACE VELOCITY USING OPTICAL FLOW METHOD DURING TWO-PHASE FLOW BOILING
Submission Author:
Elaine Maria Cardoso , SP , Brazil
Co-Authors:
Jeferson Diehl de Oliveira, Jacqueline Copetti, Elaine Maria Cardoso
Presenter: Jeferson Diehl de Oliveira
doi://10.26678/ABCM.ENCIT2020.CIT20-0655
Abstract
Flow patterns are found in many processes involving multiphase flows in the industry. This study experimentally investigated the behavior of the velocity field in the liquid-vapor interface during flow boiling of isobutane at a saturation temperature of 17 °C with heat flux varying from 5 to 20 kW/m² and fixed mass flux of 890 kg/(m²s). Tests were performed in a horizontal tube with an inner diameter of 1.0 mm. Four different flow patterns were identified based on images and the velocity fields in the liquid-vapor interface were investigated using an optical flow method.
Keywords
Two-phase Flow, liquid-vapor interface, optical flow, Velocity field, Flow boiling
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