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Multiphase Science and Technology
SJR: 0.124 SNIP: 0.222 CiteScore™: 0.26

ISSN Print: 0276-1459
ISSN Online: 1943-6181

Multiphase Science and Technology

DOI: 10.1615/MultScienTechn.v22.i1.60
pages 95-114

TWO-PHASE FLOW MALDISTRIBUTION IN A MINI-MANIFOLD SYSTEM

Iztok Zun
Laboratory for Fluid Dynamics and Thermodynamics, Faculty of Mechanical Engineering, University of Ljubljana, Askerceva 6, 1000 Ljubljana, Slovenia
Jurij Gregorc
Laboratory for Fluid Dynamics and Thermodynamics, Faculty of Mechanical Engineering, University of Ljubljana, Slovenia
Matjaz Perpar
Laboratory for Fluid Dynamics and Thermodynamics, Faculty of Mechanical Engineering, University of Ljubljana, Slovenia

ABSTRACT

The flow distribution of air and water among the parallel vertical tubes of a manifold system was studied over a wide range of air and water flow rates. Data on a semicircle cross-section header of 1.22 mm hydraulic diameter and three T-junctions with the corresponding side arms of 0.61 mm hydraulic diameter are presented. The gas and liquid superficial velocity ranges were 0.02-40.0 and 0.08-6.0 m/s. The following discernible flow regimes were considered: bubbly, bubbly to slug, slug, semi-annular, and churn flow. There are systematic trends on phase separation that depend on flow regime and on the T-junction location.

REFERENCES

  1. Azzi, A., Al-Attiyah, A., Qi, L., Cheema, W., and Azzopardi, B. J., Gas-liquid two-phase flow division at a micro-T-junction. DOI: 10.1016/j.ces.2010.03.037

  2. Azzopardi, B. J., Phase separation at T junction.

  3. Collier, J., Single-phase and two-phase behavior in primary circuit components.

  4. Fukano, T. and Kariyasaki, A., Characteristics of gas-liquid two-phase flow in a capillary. DOI: 10.1016/0029-5493(93)90092-N

  5. Hetsroni, G., Mosyak, A., Segal, Z., and Pogrebnyak, E., Two-phase flow patterns in parallel microchannels. DOI: 10.1016/S0301-9322(03)00002-8

  6. Jones, O. C. and Zuber, N., The interrelation between void fraction fluctuations and flow patterns in two-phase flow. DOI: 10.1016/0301-9322(75)90015-4

  7. Matsui, G., Identification of flow regimes in vertical gas-liquid two-phase flow using differential pressure fluctuations. DOI: 10.1016/0301-9322(84)90007-7

  8. Mishima, K. and Ishii, M., Flow regime transition criteria for upward two-phase flow in vertical tubes. DOI: 10.1016/0017-9310(84)90142-X

  9. Triplett, K. A., Gas-liquid two-phase flow in microchannels, Part I: Two-phase flow patterns. DOI: 10.1016/S0301-9322(98)00054-8

  10. Wang, S. F., Mosdorf, R., and Shoji, M., Nonlinear analysis on the fluctuation feature of two-phase flow through a T-junction. DOI: 10.1016/S0017-9310(02)00455-6

  11. Xie, T., Ghiaasiaan, S. M., and Karrila, S., Artificial neural network approach for flow regime classification in gas-liquid-fiber flows based on frequency domain analysis of pressure signals. DOI: 10.1016/j.ces.2004.02.017

  12. Zhao, T. S. and Bi, Q. C., Co-current air-water two-phase flow patterns in vertical triangular microchannels. DOI: 10.1016/S0301-9322(00)00051-3


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