Momentum Transfer In Two-phase Flow Research Articles

Derivation of constitutive equations for interfacial momentum transfer required for the analyses of gas-liquid-solid three-phase flow with a one-dimensional three-fluid model.

Derivation of constitutive equations for interfacial momentum transfer between two phases in three-phase flow was carried out in this study. For a preparation of this derivation, the validity of Andersen's equation for the interfacial momentum transfer in two-phase flow was examined. This examination clarified that Andersen's equation cannot be applied when the density difference of two phases or a body force is small. A new constitutive equation for the interfacial momentum transfer in two-phase flow, which can be applied even to the above-mentioned case, was derived from the area-averaged momentum equations. Then, similar constitutive equations for the interfacial momentum transfer between two phases in three-phase flow were derived using drift-flux correlations for hypothetical two-phase flows which are conceived by excluding one phase from the three phases. Constitutive equations for drag coefficients between two phases were also proposed.

Momentum Transfer in Two-Phase Flow of Gas Pseudoplastic Liquid Mixtures

Momentum Transfer in Two-Phase Flow of Gas Pseudoplastic Liquid Mixtures

Statistical properties of momentum transfer in two-phase flow

The momentum transfer in a two-phase stream, consisting of particles carried by a fluid, was studied by applying the statistical theory of turbulence. Statistical relations showed that the correlation, scale and intensity of one phase can be calculated from those of the other phase. Approximate solution indicates the basic parameters affecting momentum transfer.