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Multiphase Science and Technology
SJR: 0.153 SNIP: 0.222 CiteScore™: 0.26

ISSN Imprimir: 0276-1459
ISSN En Línea: 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

SINOPSIS

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.

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