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

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

Multiphase Science and Technology

DOI: 10.1615/MultScienTechn.v3.i1-4.90
pages 184-231

EXPERIMENTAL DATA SET NO. 4: PHASE DISTRIBUTION IN A TRIANGULAR DUCT

ABSTRAKT

Lateral phase distributions and phase velocities are measured for air-water vertical flows in a triangular duct (hydraulic diameter DH = 39.4 mm). The highest liquid velocity and largest void fraction are seen in the open region of the triangular section. The lateral 'void drift' phenomenon is clearly observed and found independent on liquid flowrate and/or wall induced turbulence. Experiments are also carried out for the various superficial liquid and air velocities to investigate the developing length (L/DH) required for a fully developed void distribution. The L/DH is found to increase as the superficial liquid velocity increases and decrease as the global void fraction increases.


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