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Heat Transfer Research
Импакт фактор: 0.404 5-летний Импакт фактор: 0.8 SJR: 0.264 SNIP: 0.504 CiteScore™: 0.88

ISSN Печать: 1064-2285
ISSN Онлайн: 2162-6561

Выпуски:
Том 50, 2019 Том 49, 2018 Том 48, 2017 Том 47, 2016 Том 46, 2015 Том 45, 2014 Том 44, 2013 Том 43, 2012 Том 42, 2011 Том 41, 2010 Том 40, 2009 Том 39, 2008 Том 38, 2007 Том 37, 2006 Том 36, 2005 Том 35, 2004 Том 34, 2003 Том 33, 2002 Том 32, 2001 Том 31, 2000 Том 30, 1999 Том 29, 1998 Том 28, 1997

Heat Transfer Research

DOI: 10.1615/HeatTransRes.v38.i5.80
pages 473-482

Evolution of Local Characteristics of an Ascending Slug Flow in a Vertical Pipe

Oleg N. Kashinsky
Lab. of Physical and Chemical Hydrodynamics, Kutateladze Institute of Thermophysics, Siberian Branch of Russian Academy of Sciences, Novosibirsk, Russia
V. V. Randin
Institute of Thermophysics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
Aleksandr S. Kurdyumov
Lab. of Physical and Chemical Hydrodynamics, Kutateladze Institute of Thermophysics, Siberian Branch of Russian Academy of Sciences, Novosibirsk, Russia

Краткое описание

The experimental research on the ascending gas-liquid slug flow in a vertical pipe has been conducted. Measurements have been performed by the electrochemical method. A technique of provisional realization ensemble averaging has been practiced and used to measure distributions of liquid velocities in a liquid plug depending on the distance from the start of the slug. It is shown that, in the initial area of the liquid plug, a considerable deformation of liquid velocity profiles takes place, as compared to a one-phase flow, which is the result of the influence of a toroidal vortex flowing from under the previous gas slug. The behavior of friction at the wall corresponds completely to the liquid velocity behavior in the near-wall area of the flow.


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