Influence Of The Interfacial Pressure Jump
Condition On The Simulation Of Horizontal
Two-phase Slug Flows Using The Two-fluid Model
Author(s)
J. N. E. Carneiro, A. J. Ortega & A. O. Nieckele
Abstract
The two-fluid model has been widely used on the simulation of two-phase flows
in pipelines. The model consists of two sets of conservation equations of mass
and linear momentum for the liquid and gas phases on its transient, onedimensional
form. The slug capturing methodology involves the numerical
solution of the equations using a finite volume formulation, which is capable of
naturally predicting the onset of slugging from the stratified flow regime, as well
as the growth and collapse of the slugs. However, the existence of a region
where the flow equations are ill-posed restricts the range to which a valid
solution is obtained. The ill posedness region depends on the modeling of the
interfacial closure relations. In the present work, the influence of an interfacial
pressure-jump condition in the solution was investigated.
Keywords: slug-flows, one-dimensional, horizontal, pressure-jump.
1 Introduction
Two-phase flow in the slug pattern can be found in several engineering
applications, such as flow of hydrocarbons through pipelines, liquid-vapor flow in
power-plants, etc [1]. The slug is a flow pattern which is highly intermittent, it is
formed by sequences of large gas bubbles followed by packs of liquid (slug)
flowing in random fluctuating frequencies [2,3].
The slug pattern can be formed in horizontal and inclined pipelines from a
stratified pattern by basically two mechanisms: the natural growth of
Keywords
slug-flows, one-dimensional, horizontal, pressure-jump.
Related Book
Other papers in this volume
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