Package neqsim.process.equipment.pipeline.twophasepipe.closure

package neqsim.process.equipment.pipeline.twophasepipe.closure

Closure relations for two-fluid multiphase pipe flow model.

This package provides closure correlations required by the two-fluid model to close the system of conservation equations. These include:

• Wall friction correlations for each phase (τ_wg, τ_wL)
• Interfacial friction correlations (τ_i)
• Geometry calculations for stratified flow (wetted perimeters, liquid level)
• Entrainment and deposition models

Key Classes

• WallFriction - Phase-specific wall friction
• InterfacialFriction - Gas-liquid interface friction
• GeometryCalculator - Stratified flow geometry

References

• Taitel, Y. and Dukler, A.E. (1976) - AIChE Journal 22(1)
• Andritsos, N. and Hanratty, T.J. (1987) - Int. J. Multiphase Flow
• Wallis, G.B. (1969) - One-dimensional two-phase flow

Since:

1.0

Related Packages

Package	Description
neqsim.process.equipment.pipeline.twophasepipe	Transient multiphase pipe flow models.
neqsim.process.equipment.pipeline.twophasepipe.numerics	Numerical methods for two-fluid multiphase pipe flow solver.

Classes

Class	Description
GeometryCalculator	Geometry calculations for stratified two-phase flow in circular pipes.
GeometryCalculator.StratifiedGeometry	Result container for stratified flow geometry calculations.
InterfacialFriction	Interfacial friction correlations for two-fluid multiphase pipe flow.
InterfacialFriction.InterfacialFrictionResult	Result container for interfacial friction calculations.
WallFriction	Wall friction correlations for two-fluid multiphase pipe flow.
WallFriction.WallFrictionResult	Result container for wall friction calculations.