Interfacial area transport in bubbly flow
Conference
·
OSTI ID:569617
- Purdue Univ., West Lafayette, IN (United States); and others
In order to close the two-fluid model for two-phase flow analyses, the interfacial area concentration needs to be modeled as a constitutive relation. In this study, the focus was on the investigation of the interfacial area concentration transport phenomena, both theoretically and experimentally. The interfacial area concentration transport equation for air-water bubbly up-flow in a vertical pipe was developed, and the models for the source and sink terms were provided. The necessary parameters for the experimental studies were identified, including the local time-averaged void fraction, interfacial area concentration, bubble interfacial velocity, liquid velocity and turbulent intensity. Experiments were performed with air-water mixture at atmospheric pressure. Double-sensor conductivity probe and hot-film probe were employed to measure the identified parameters. With these experimental data, the preliminary model evaluation was carried out for the simplest form of the developed interfacial area transport equation, i.e., the one-dimensional transport equation.
- Research Organization:
- Argonne National Lab., IL (United States)
- OSTI ID:
- 569617
- Report Number(s):
- CONF-9705121--; ON: DE98000902
- Country of Publication:
- United States
- Language:
- English
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