Lubricated pipelining. Part 3. Stability of core-annular flow in vertical pipes

Kangping Chen, Runyuan Bai, Daniel D. Joseph

Research output: Contribution to journalArticle

42 Citations (Scopus)

Abstract

The stability of core-annular flow in vertical pipes is analysed using the linearized theory of stability. In previous studies instabilities due to interfacial friction, interfacial tension and Reynolds stresses in the bulk fluid were identified and associated with observed instabilities. In this study we include and analyse the effects of gravity. In one case gravity opposes and in the other aids the applied pressure gradient. Some preliminary results from our experiments are also presented. The prediction of stability for perfect core-annular flow in a carefully selected window of parameters is verified for the case of free fall in which the applied pressure gradient vanishes.

Original languageEnglish (US)
Pages (from-to)251-286
Number of pages36
JournalJournal of Fluid Mechanics
Volume214
StatePublished - May 1990
Externally publishedYes

Fingerprint

annular flow
Pipe
Pressure gradient
pressure gradients
Gravitation
gravitation
free fall
Reynolds stress
Surface tension
interfacial tension
friction
Friction
Fluids
fluids
predictions
Experiments

ASJC Scopus subject areas

  • Computational Mechanics
  • Mechanics of Materials
  • Physics and Astronomy(all)
  • Condensed Matter Physics

Cite this

Lubricated pipelining. Part 3. Stability of core-annular flow in vertical pipes. / Chen, Kangping; Bai, Runyuan; Joseph, Daniel D.

In: Journal of Fluid Mechanics, Vol. 214, 05.1990, p. 251-286.

Research output: Contribution to journalArticle

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