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Turbid two-phase slug flow in a microtube: Simultaneous visualization of structure and velocity field
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10.1063/1.2267124
/content/aip/journal/apl/89/6/10.1063/1.2267124
http://aip.metastore.ingenta.com/content/aip/journal/apl/89/6/10.1063/1.2267124

Figures

Image of FIG. 1.
FIG. 1.

Schematic of a fiber-based frequency domain OCT: a wide spectrum was sampled by a InGaAs detector array at . Imaging depth and depth resolution were and in air, respectively. Single- and dual-beam probes were used. The dotted line indicates the dual-beam probe which is based on a Wollaston prism. A glass capillary with an inner diameter was tilted by . Two-phase flow was generated at a Y junction. LCL, low-coherence light; CM, collimator; DG, diffraction grating; FL, focusing lens; WP, Wollaston prism; and LSC, line scan camera.

Image of FIG. 2.
FIG. 2.

Structural images recorded for with the single-beam probe. The coordinates and mean depth and time: (a) , ; (b) , ; (c) , ; (d) , ; (e) , ; (f) , ; (g) , ; and (h) , .

Image of FIG. 3.
FIG. 3.

(Color) Structural image (a) and liquid velocity projected on the incident beam direction [(b) and (c)] with the dual-beam probe. The distance between two arrows indicates the shifted time, corresponding to bubble velocity. The flow was quasi-steady-state. Superficial gas and liquid velocities were 5.88 and , respectively. Toroidal vortices were observed and the mean velocity of bulk liquid far from the vortices was with 1.5° tube inclination. (c) is an enlargement of the left portion of (b).

Tables

Generic image for table
Table I.

Variation of two-phase flow parameters with different combinations of and .

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/content/aip/journal/apl/89/6/10.1063/1.2267124
2006-08-11
2014-04-25
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Turbid two-phase slug flow in a microtube: Simultaneous visualization of structure and velocity field
http://aip.metastore.ingenta.com/content/aip/journal/apl/89/6/10.1063/1.2267124
10.1063/1.2267124
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