Sampling probe studies of the gas core in annular two-phase flow—I The effect of length on phase and velocity distribution

TWO-PHASE FLOW AND HEAT TRANSFER IN MULTIROD GEOMETRIES. Twelfth Quarterly Progress Report, July 1--September 30, 1968.

“…1 around this line, which is presented in Figure 1. The asymptotic (fully developed) entrainment datum of the Gill, et al , ( 7 ) developing flow is in excellent agreement with Equation (3), as shown in Figul'e 2 .. t::,. GEAP-5709…”

“…(6) may well hold for the gas linear velocity (7) The gas linear·velocity results of the_present investigation are shown in Figure 6 to be substantially independent of mean flow quality within the scatter of the results. The experimental gas linear velocity results of Alia, et al , ( 9 ) are shown in Figure 7 for fully-developed annular dispersed flows.…”

Application of a high-speed laser-induced fluorescence technique for studying the three-dimensional structure of annular gas–liquid flow

“…The probe was located 80 cm (53 pipe diameters) below the inlet. According to the measurements of Gill et al (1963), at this dimensionless distance, the radial distribution of the concentration of droplets is rather uniform. In our experiments, the influence of the radial position of the probe on the measured flow rate of droplets was checked experimentally.…”

Fundamentals of Multiphase Flow

“…Droplet concentration profiles in the gas core of a vertical annular pipe flow (3.2cm diameter) illustrating the increase with elevation from initiation (lowest line, 15cm elevation; uppermost line, 531cm elevation) (from Gill et al 1963). Figure 12.9 shows the same jet even further downstream.…”