Fluctuation characteristics of bubbly liquid flow in converging-diverging nozzle
- 1 April 1988
- journal article
- Published by IOP Publishing in Fluid Dynamics Research
- Vol. 2 (4) , 217-228
- https://doi.org/10.1016/0169-5983(88)90001-9
Abstract
The pressure fluctuation characteristics in bubbly liquid flow in a converging-diverging nozzle are interpreted on the basis of the previous theoretical results concerning the possible wave modes in bubbly liquid flow and their properties. The experiment is performed in a visual blowdown facility using water and nitrogen gas. The intensity and power spectrum density of the pressure fluctuations are measured, as well as the velocities of liquid and bubbles, the void fraction and the chord length of bubbles. All the fluctuation characteristics and their relation with the main stream condition are compatible with the theoretical predictions. The instability of the convection mode in the presence of the velocity slip and the cut off of the propagation modes in moderate frequency are demonstrated.Keywords
This publication has 7 references indexed in Scilit:
- Acoustic Waves Forced in Flowing Bubbly LiquidJournal of the Physics Society Japan, 1986
- Two-phase flow equations for a dilute dispersion of gas bubbles in liquidJournal of Fluid Mechanics, 1984
- The structure of bubbly flow through venturisInternational Journal of Multiphase Flow, 1979
- Structural development of gas-liquid mixture flowsJournal of Fluid Mechanics, 1976
- Relaxation effects, caused by relative motion, on shock waves in gas-bubble/liquid mixturesJournal of Fluid Mechanics, 1974
- One-Dimensional Flow of Liquids Containing Small Gas BubblesAnnual Review of Fluid Mechanics, 1972
- On the equations of motion for mixtures of liquid and gas bubblesJournal of Fluid Mechanics, 1968