In this work, flow development in different flow regimes is investigated as well. The gas-phase velocities share similar profiles as the liquid-phase velocity but have slightly higher magnitudes due to the buoyancy force effect. In fully developed bubbly flows, “wall-peak” void profiles are observed, which is due to the transverse lift force effect. The two-phase flow interfacial structures are visualized by both high-speed optical and X-ray images. Selected conditions in the bubbly, slug, and churn-turbulent flow regimes with the gas and liquid superficial velocities ranging from 0.05 to 4.99 m/s and from 0.10 to 3.88 m/s, respectively, are investigated in this work. The FASTCAM SA6 camera may be controlled via the optional remote LCD keypad.
The gas-phase information is obtained by an integrated method synergizing conductivity probe, high-speed imaging system, and X-ray densitometry system while the Particle Image Velocimetry and Planar Laser-Induced Fluorescence (PIV-PLIF) technique are utilized to measure liquid-phase velocity and turbulence characteristics. Download Photron fastcam viewer user s manual Help+Manual User Community and. The work presented in this paper aims to perform detailed measurements of air-water two-phase flow in a 25.4 mm inner diameter pipe using several techniques developed recently. has introduced the fastcam sa3, a megapixel, high- speed video imaging system that is designed to withstand high- g and rugged environments. High-quality two-phase flow data are essential for further developing various two-phase flow models and validating two-phase flow codes. the fastcam sa6’ s 10µm square cmos pixel is measured to iso 4, 000 for the 12- bit monochrome version and iso 1, 250 for the 36- bit color camera, both to the iso 12232 ssat standard.