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Titolo:
Numerical study of multi-jet mixing
Autore:
Giorges, ATG; Forney, LJ; Wang, XD;
Indirizzi:
Georgia Inst Technol, Sch Chem Engn, Atlanta, GA 30332 USA Georgia Inst Technol Atlanta GA USA 30332 hem Engn, Atlanta, GA 30332 USA Inst Paper Sci & Technol, Atlanta, GA 30318 USA Inst Paper Sci & Technol Atlanta GA USA 30318 hnol, Atlanta, GA 30318 USA Polytech Univ, Dept Mech Engn, Brooklyn, NY 11201 USA Polytech Univ Brooklyn NY USA 11201 ept Mech Engn, Brooklyn, NY 11201 USA
Titolo Testata:
CHEMICAL ENGINEERING RESEARCH & DESIGN
fascicolo: A5, volume: 79, anno: 2001,
pagine: 515 - 522
SICI:
0263-8762(200107)79:A5<515:NSOMM>2.0.ZU;2-R
Fonte:
ISI
Lingua:
ENG
Soggetto:
TURBULENT;
Keywords:
pipeline mixing; transverse mixers; multiple injection mixing;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
12
Recensione:
Indirizzi per estratti:
Indirizzo: Forney, LJ Georgia Inst Technol, Sch Chem Engn, Atlanta, GA 30332 USA Georgia Inst Technol Atlanta GA USA 30332 tlanta, GA 30332 USA
Citazione:
A.T.G. Giorges et al., "Numerical study of multi-jet mixing", CHEM ENG R, 79(A5), 2001, pp. 515-522

Abstract

The mixing process of turbulent streams within a pipeline due to single and multiple transverse jets is analyzed in this paper. The process is simulated using the incompressible Navier-Stokes equations with mass transfer andthe standard k - epsilon turbulence model. The mixing effectiveness is characterized by evaluation of the second moment of mixing at various downstream locations. The numerical results for single and double jets agree well with both existing experimental data as well as semi-empirical expressions. Using the simulated data, a new correlation is developed to predict the mixing performance of both single and multiple jet configurations. The numerical results suggest that multiple jets ensure better mixing in addition to decreasing power requirements with an increasing number of jets. In particular, the case of four jets ( = 4) provides distinctly superior mixing compared to n < 4.

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Documento generato il 04/04/20 alle ore 12:09:35