Determination of Drop Sizes in Annular Gas/Liquid Flows in Vertical and Horizontal Pipes

Abstract

Measurement of drop sizes play vital role in applications dealing with gas/liquid flow mixtures. In the present work, drop sizes in vertical and horizontal pipe flows were determined using Malvern 2600HSD system that applies laser diffraction method. From the analysis of the experimental data obtained at two different pipe orientations, two separate expressions were developed to determine Sauter mean diameter, d ₃₂. Except for the 20 m/s superficial gas velocity in vertical flow case, a good agreement was found between the developed expressions and the experimental data.

Keywords:

• Annular flow
• drop
• gas/liquid flows
• laser diffraction
• modelling