Two-fluid model formulation and drag correlation for dispersed two-phase flow
Conference
·
OSTI ID:6490238
A two-phase flow model can be developed by applying a proper averaging method to a local instant formulation. In a macroscopic formulation based on the averagings, collective interactions of fluid particles and dynamics of the interfaces are modeled through the phase interaction terms. There are two fundamentally different formulations of the macroscopic two-phase flow model, namely, the two-fluid model and mixture model. The two-fluid model is formulated by considering each phase separately in terms of two sets of macroscopic conservation equations governing the balance of mass, momentum and energy of each phase. In the two-fluid model, two momentum equations describe the motions of phases. However, in the macroscopic field, motions of phases are not independent of each other, therefore, the interfacial momentum interaction terms should be specified in the model. Since these momentum interaction terms play the key role in the two-fluid model, they are studied in detail in this paper.
- Research Organization:
- Argonne National Lab., IL (USA)
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 6490238
- Report Number(s):
- CONF-810234-2; ON: DE83007778
- Country of Publication:
- United States
- Language:
- English
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