Compressibility effects in the gas phase for unsteady annular two-phase flow in a microchannel
Document Type
Conference Proceeding
Publication Date
1-1-2006
Abstract
High speed microscopy experiments investigating two-phase (gas-liquid) flow behavior in capillary-scale systems, that is, systems where capillary forces are important relative to gravitational forces, have revealed a unique unsteady annular flow with periodic destabilization of the gas-liquid interface. Standing waves develop on the liquid film and grow into annular lobes similar with those observed in low-speed two-phase flow. The leading face of the lobe will decelerate and suddenly become normal to the wall of the capillary, suggesting the possibility of a shock wave in the gas phase at a downstream location from the minimum gas flow section. Visualization of the naturally occurring convergent-divergent nozzle-like structures as well as a discussion on the possibility of shock wave formation are presented. Copyright © 2006 by ASME.
Publication Title
American Society of Mechanical Engineers, Fluids Engineering Division (Publication) FED
Recommended Citation
Herescu, A.,
&
Allen, J.
(2006).
Compressibility effects in the gas phase for unsteady annular two-phase flow in a microchannel.
American Society of Mechanical Engineers, Fluids Engineering Division (Publication) FED.
http://doi.org/10.1115/IMECE2006-15528
Retrieved from: https://digitalcommons.mtu.edu/michigantech-p/11887