Stability analysis of annular flow structure, using a discrete form of the "two-fluid model"

D. Barnea*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

The differential form of the "two-fluid model" for annular flow, neglecting surface tension, is ill-posed, and it is not suited for examining the stability of the steady-state solutions with respect to the average film thickness. It is shown here that a discrete (difference) representation of the two-fluid model may lead to an appropriate criterion for the stability of the steady-state solutions. Exactly the same criterion is obtained from the requirement that the kinematic waves will propagate in the downstream direction. The suggested discrete form of the "two-fluid model" is used to perform transient simulation and for examining the system response to finite disturbances.

Original languageEnglish
Pages (from-to)705-716
Number of pages12
JournalInternational Journal of Multiphase Flow
Volume17
Issue number6
DOIs
StatePublished - 1991

Keywords

  • annular flow
  • stability
  • two phase flow

Fingerprint

Dive into the research topics of 'Stability analysis of annular flow structure, using a discrete form of the "two-fluid model"'. Together they form a unique fingerprint.

Cite this