Técnicas avançadas para análise de escoamento bifásico gás-líquido em golfadas

Abstract

Characterization of two-phase flows is important for monitoring and control of many industrial processes. In this regard, the proposed paper uses ultrasonic techniques, wire-mesh sensor and high-speed videometry to extract parameters of interest in horizontal gas-liquid two-phase slug flows. The experimental data were obtained from a test rig, where two- phase flow was generated in a horizontal line of 9 meters in length and 26mm in diameter. The ultrasound and wire-mesh data were processed to obtain parameters for characterizing the two-phase slug flow, such as void fraction and the elongated bubble velocity. To assist the analysis, other techniques such as high speed image acquisitions and theoretical models well know in the literature were used.