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Effects of the gap size on the flow pattern maps in a mini-gap annular channel

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dc.contributor.authorPipathattakul, Manop
dc.contributor.authorMahian, Omid
dc.contributor.authorDalkilic, Ahmet Selim
dc.contributor.authorWongwises, Somchai
dc.contributor.institutionauthorDALKILIÇ, Ahmet Selim
dc.date.accessioned2026-06-27T13:31:31Z
dc.date.issued2014
dc.description.abstractAn experimental study has been performed to examine the effects of gap size on the flow pattern maps of air-water two-phase flow inside a mini-gap annular channel with inclination angles (theta) of 0 degrees, 30 degrees, and 60 degrees. The tests are conducted for three different sizes of the inner diameters (D-i) of the concentric annular test section-namely 8, 10, and 11 mm-while the outer diameter is equal to 12.5 mm. The flow pattern maps are presented for various types of flow including plug flow, slug flow, annular/slug flow, annular flow, bubbly/plug flow, bubbly/slug-plug flow, churn flow, and dispersed bubbly flow, regarding the alteration of gap sizes and inclination angles. According to the experimental conclusions, the angle of inclination and the various gap sizes are influential in the transition of flow regimes. (C) 2014 Elsevier Inc. All rights reserved.en
dc.description.sponsorshipThailand Research Fund
dc.description.sponsorshipNational Science and Technology Development Agency
dc.description.sponsorshipNational Research University Project
dc.description.urihttps://doi.org/10.1016/j.expthermflusci.2014.06.006
dc.identifier.doi10.1016/j.expthermflusci.2014.06.006
dc.identifier.eissn1879-2286
dc.identifier.endpage424
dc.identifier.issn0894-1777
dc.identifier.startpage420
dc.identifier.urihttps://hdl.handle.net/20.500.14981/53544
dc.identifier.volume57
dc.identifier.wos000340340300045
dc.language.isoeng
dc.publisherELSEVIER SCIENCE INC
dc.relation.ispartofEXPERIMENTAL THERMAL AND FLUID SCIENCE
dc.subjectTwo-phase flow
dc.subjectMini-channel
dc.subjectNarrow annular channel
dc.subjectFlow pattern
dc.subjectPressure drop
dc.subjectVoid fraction
dc.subject2-PHASE FLOW
dc.subjectPRESSURE-DROP
dc.subjectLIQUID FLOW
dc.subjectThermodynamics
dc.subjectEngineering
dc.subjectPhysics
dc.titleEffects of the gap size on the flow pattern maps in a mini-gap annular channel
dc.typeArticle
dspace.entity.typePublication
local.import.sourceWOS

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