Numerical calculation of two-phase flows
Journal Article
·
· Nucl. Sci. Eng.; (United States)
OSTI ID:7345185
The theoretical study of time-varying two-phase flow problems in several space dimensions introduces such a complicated set of coupled nonlinear partial differential equations that numerical solution procedures for a high-speed computer are required in almost all but the simplest examples. Efficient attainment of realistic solutions for practical problems requires a finite difference formulation that is simultaneously implicit in the treatment of mass convection, equations-of-state, and the momentum coupling between phases. Such a method is described, and the equations on which it is based are discussed. In particular, the capability for calculating physical instabilities and other time-varying dynamics, at the same time avoiding numerical instability are emphasized. The computer code is applicable to problems in reactor safety analysis, the dynamics of fluidized dust beds, raindrops or aerosol transport, and a variety of similar circumstances, including the effects of phase transitions and the release of latent heat or chemical energy.
- Research Organization:
- Los Alamos Scientific Lab., NM
- OSTI ID:
- 7345185
- Journal Information:
- Nucl. Sci. Eng.; (United States), Journal Name: Nucl. Sci. Eng.; (United States) Vol. 61:1; ISSN NSENA
- Country of Publication:
- United States
- Language:
- English
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