Identification of the range of ‘small diameters’ conduits, regarding two-phase flow pattern transitions

Identification of the range of ‘small diameters’ conduits, regarding two-phase flow pattern transitions

Integrated frame of both stability and well-posedness analyses is shown to predict the complete stratified/nonstratified transitional boundary over wide ranges of conduit size. It is shown that the stabilizing effects of surface tension associated with practically finite wave lengths must be conside...

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Veröffentlicht in:International communications in heat and mass transfer 1992, Vol.19 (1), p.29-39
Hauptverfasser: Brauner, Neima, Maron, David Moalem
Format: Artikel
Sprache:eng
Schlagworte:
420400 - Engineering- Heat Transfer & Fluid Flow
661300 - Other Aspects of Physical Science- (1992-)
CALCULATION METHODS
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
DIMENSIONS
ENGINEERING
Exact sciences and technology
Fluid dynamics
FLUID FLOW
FLUID MECHANICS
FLUIDS
Fundamental areas of phenomenology (including applications)
MECHANICS
Nonhomogeneous flows
numerical analysis
PHASE STABILITY
Physics
STABILITY
SURFACE PROPERTIES
SURFACE TENSION
THERMODYNAMICS
TRANSITION FLOW
TUBES
TWO-PHASE FLOW
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Zusammenfassung:Integrated frame of both stability and well-posedness analyses is shown to predict the complete stratified/nonstratified transitional boundary over wide ranges of conduit size. It is shown that the stabilizing effects of surface tension associated with practically finite wave lengths must be considered. This explains the basic defficiency of all previous analyses which employed single stability criteria of infinite long waves. The range of ‘small diameters’ conduits, regarding flow pattern transition, is identified by Eotwös number smaller than unity.
ISSN:0735-1933
1879-0178
DOI:10.1016/0735-1933(92)90061-L