Abstract
The dynamic development of interfacial structure in two-phase flows has been studied by using the interfacial area transport equations with various bubble interaction mechanisms. The two-group interfacial area transport equations are incorporated into a multiphase computational fluid dynamics code in the framework of the two-fluid model which is modified to use a combined gas momentum equation for two groups of bubbles. A benchmark is performed for adiabatic churn-turbulent and cap-turbulent flows in a confined vertical rectangular duct (20. cm. ×. 1. cm) with newly developed hydrodynamic models for lift and bubble-induced turbulent diffusion forces as well as the bubble-induced turbulence. The benchmark results demonstrate improved predictive capability of the two-fluid model with these hydrodynamic models and the two-group interfacial area transport equations. © 2013 Elsevier Ltd.
| Original language | English |
|---|---|
| Pages (from-to) | 115-130 |
| Journal | International Journal of Multiphase Flow |
| Volume | 57 |
| DOIs | |
| Publication status | Published - Dec 2013 |
| Externally published | Yes |
Bibliographical note
Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].Research Keywords
- Breakup
- CFD
- Coalescence
- Interfacial area transport equation
- Two group bubbles
- Two-fluid model
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