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Портал Begell Электронная Бибилиотека e-Книги Журналы Справочники и Сборники статей Коллекции
International Journal of Fluid Mechanics Research
ESCI SJR: 0.22 SNIP: 0.446 CiteScore™: 0.5

ISSN Печать: 2152-5102
ISSN Онлайн: 2152-5110

Выпуски:
Том 46, 2019 Том 45, 2018 Том 44, 2017 Том 43, 2016 Том 42, 2015 Том 41, 2014 Том 40, 2013 Том 39, 2012 Том 38, 2011 Том 37, 2010 Том 36, 2009 Том 35, 2008 Том 34, 2007 Том 33, 2006 Том 32, 2005 Том 31, 2004 Том 30, 2003 Том 29, 2002 Том 28, 2001 Том 27, 2000 Том 26, 1999 Том 25, 1998 Том 24, 1997 Том 23, 1996 Том 22, 1995

International Journal of Fluid Mechanics Research

DOI: 10.1615/InterJFluidMechRes.v25.i1-3.360
pages 408-421

Mixing Time in a Gas-Particle Stirred Ladle with Throughflow

Краткое описание

An experimental study is conducted on a gas-particle stirred ladle system with throughflow of molten metal using a simplified water model. A real-time image processing technique is employed to investigate the effects of nozzle location, throughflow rate and air and particle flow rates on the melt-particle mixing as well as to determine the timewise variation of gas and particle behavior. It is disclosed that the mixing energy supplied to the ladle consists of four sources including buoyancy, gas and particle injections and throughflow and that the mixing time decreases with an increase in the total mixing energy. No effect of nozzle depth on mixing appears explicitly if mixing times measured are summarized as a function of the total mixing energy. Longer mixing time is attained in the lower mixing energy regime, in which the main contribution is due to the rising gas bubbles through the melt driven by buoyancy. On the contrary, shorter mixing time is expected if the mixing energy input is larger and depends mainly on gas and particle injections. Correlation equations are derived to predict the mixing time in a gas-particle stirred ladle with throughflow.


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