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Multiphase Science and Technology

Erscheint 4 Ausgaben pro Jahr

ISSN Druckformat: 0276-1459

ISSN Online: 1943-6181

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

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PRESSURE GRADIENT PREDICTION IN VERTICAL COUNTER-CURRENT FLOWS

Volumen 14, Ausgabe 1, 2002, 13 pages
DOI: 10.1615/MultScienTechn.v14.i1.30
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ABSTRAKT

A prediction methodology for pressure gradient in vertical counter-current air-water flow is presented based on empirical data for downward falling film flow at 3.78 ґ 10-3, 10.08 ґ 10-3, 2.52 ґ 10-3 and 37.80 ґ 10-3 kg/s in the presence of an upward air stream flowing rates ranging from ~ 2.5 ґ 10-4 to 142.0 ґ 10-4 kg/s. The method devised is an extension of the previous study by Hewitt et al. (1965) and has been developed to have as input the length of tube and air and liquid falling film flow rates.

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