Multiphase Science and Technology A Quarterly

ISSN for PRINT: 0276-1459

For Online Access

Best Paper Award Selection - Editorial Board Site

1987, Volume3

Issue 1-4

508 pages

Issue price - $560.00

Lateral phase distributions and phase velocities are measured for air-water vertical flows in a triangular duct (hydraulic diameter D_H = 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/D_H) required for a fully developed void distribution. The L/D_H is found to increase as the superficial liquid velocity increases and decrease as the global void fraction increases.

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