A model for roll waves in gas-liquid flow

Simultaneous measurements of thickness and local mass transfer rate on falling liquid films.

“…5. If the circle for each waveis expressed with phase shift ftas cos2 2n^-2HiKi cos 2^-1+^5+^5=0 (7) then ft can be estimated by JOURNAL OF CHEMICAL ENGINEERING OF JAPAN cos 2np=±j:(IIiKi+VmKl-Hl-Kl+l) (8) In Fig. 6, /3 is shown to be nearly constant in the experimental range.…”

Introduction to liquid wall film atomization

“…These waves are of large amplitudes and long wavelengths with characteristic geometric progression -a steep front and long rear portions. A geometry model of such waves is proposed by Myia [18]. At gas velocities greater than those required for roll waves, secondary waves arise at the wave crest.…”

A mechanistic model for roll waves for two‐phase pipe flow

“…Strand 3 mapped the interface structure in wavy stratified pipe flow and measured mean velocity profiles, including secondary flows in the liquid phase. Experiments were performed by Miya 4 in a channel at atmospheric pressure and a correlation for the apparent increase in interfacial friction due to large waves was suggested. Kowalski 5 and Andritsos 6 suggested empirical correlations for interfacial friction based on experimental data for air-liquid flows in horizontal pipes.…”