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Портал Begell Электронная Бибилиотека e-Книги Журналы Справочники и Сборники статей Коллекции
International Journal of Fluid Mechanics Research
ESCI SJR: 0.206 SNIP: 0.446 CiteScore™: 0.5

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

Выпуски:
Том 47, 2020 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.2017016140
pages 41-64

TWO-PHASE FLOW FIELD IN A CYLINDRICAL HYDROCYCLONE WITH TANGENTIAL DISCHARGE

Marzio Piller
Department of Engineering and Architecture, University of Trieste, via A. Valerio 10, 34127 Trieste (TS), Italy
Jure Mencinger
Department of Mechanical Engineering, University of Ljubljana, Ljubljana, 1000, Askrceva 6, Slovenia
Gianni Schena
Department of Engineering and Architecture, University of Trieste, via A. Valerio 10, 34127 Trieste (TS), Italy
Girolamo Belardi
Istituto di Geologia Ambientale e Geoingegneria, Consiglio Nazionale delle Ricerche, Monterotondo (RM), 00015, Italy

Краткое описание

The two-phase, air-water flow pattern in a DynaWhirlpool-type centrifugal separator is investigated using time-dependent, three-dimensional numerical simulation. The air-water interface is captured by the volume-of-fluid approach, while the unresolved turbulence fluctuations are modeled via a second-order differential-stress turbulence model. The methodology is validated with available laser-Doppler data acquired on a similar separation device. The velocity field within the cyclone is thoroughly characterized for a single operating condition, revealing the presence of a stable air core that flows axially faster than the surrounding water.

Ключевые слова: CFD, hydrodynamics, two-phase flow, DynaWhirlpool