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Multiphase Science and Technology

Publicado 4 números por año

ISSN Imprimir: 0276-1459

ISSN En Línea: 1943-6181

SJR: 0.144 SNIP: 0.256 CiteScore™:: 1.1 H-Index: 24

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BUBBLE MEASUREMENTS IN LIQUID-METAL TWO-PHASE FLOW BY USING A FOUR-SENSOR PROBE

Volumen 24, Edición 4, 2012, pp. 279-297
DOI: 10.1615/MultScienTechn.v24.i4.10
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SINOPSIS

Liquid metal two-phase flow was measured by using a four-sensor electrical conductivity probe. The bubble velocity and diameter were calculated from the interfacial normal velocity vectors by assuming the bubble shape. The signal processing algorithm was verified numerically and experimentally with airwater two-phase flow. A leadbismuth eutectic test loop was used to measure the flow characteristics of the liquid-metal two-phase flow in a vertical round pipe. From the experimental results, the large bubble contact angle causes severe measurement error in estimating the bubble velocity due to the interface curvature. By neglecting the bubble signal with a large contact angle, reasonable bubble velocity profiles were obtained and compared with existing correlations. From these measurements, the measurement error and basic characteristics of gasliquid-metal two-phase flow were clarified.

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