Interfacial area, velocity and void fraction in two-phase slug flow
Conference
·
OSTI ID:569629
- Univ. of Wisconsin, Milwaukee, WI (United States)
- Atomic Energy Control Board, Ottawa (Canada)
The internal flow structure of air-water plug/slug flow in a 50.3 mm dia transparent pipeline has been experimentally investigated by using a four-sensor resistivity probe. Liquid and gas volumetric superficial velocities ranged from 0.55 to 2.20 m/s and 0.27 to 2.20 m/s, respectively, and area-averaged void fractions ranged from about 10 to 70%. The local distributions of void fractions, interfacial area concentration and interface velocity were measured. Contributions from small spherical bubbles and large elongated slug bubbles toward the total void fraction and interfacial area concentration were differentiated. It was observed that the small bubble void contribution to the overall void fraction was small indicating that the large slug bubble void fraction was a dominant factor in determining the total void fraction. However, the small bubble interfacial area contribution was significant in the lower and upper portions of the pipe cross sections.
- Research Organization:
- Argonne National Lab., IL (United States)
- OSTI ID:
- 569629
- Report Number(s):
- CONF-9705121--; ON: DE98000902
- Country of Publication:
- United States
- Language:
- English
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