Inscrição na biblioteca: Guest
Portal Digital Begell Biblioteca digital da Begell eBooks Diários Referências e Anais Coleções de pesquisa
Atomization and Sprays
Fator do impacto: 1.262 FI de cinco anos: 1.518 SJR: 0.814 SNIP: 1.18 CiteScore™: 1.6

ISSN Imprimir: 1044-5110
ISSN On-line: 1936-2684

Volumes:
Volume 29, 2019 Volume 28, 2018 Volume 27, 2017 Volume 26, 2016 Volume 25, 2015 Volume 24, 2014 Volume 23, 2013 Volume 22, 2012 Volume 21, 2011 Volume 20, 2010 Volume 19, 2009 Volume 18, 2008 Volume 17, 2007 Volume 16, 2006 Volume 15, 2005 Volume 14, 2004 Volume 13, 2003 Volume 12, 2002 Volume 11, 2001 Volume 10, 2000 Volume 9, 1999 Volume 8, 1998 Volume 7, 1997 Volume 6, 1996 Volume 5, 1995 Volume 4, 1994 Volume 3, 1993 Volume 2, 1992 Volume 1, 1991

Atomization and Sprays

DOI: 10.1615/AtomizSpr.v8.i1.40
pages 63-82

NUMERICAL STUDY OF THE EFFECTS OF GAS TEMPERATURE FLUCTUATION ON A TURBULENT EVAPORATING SPRAY

X.-Q. Chen
Section of Applied Thermodynamics, Department of Mechanical Engineering, Instituto Superior Técnico/Technical University of Lisbon, Lisbon, Portugal
Jose C. F. Pereira
Mechanical Engineering Department Instituto Superior Tecnico Av. Rovisco Pais, 1049-001 Lisboa Portugal

RESUMO

Computational study of a turbulent evaporating spray was conducted using a Eulerian-Lagrangian hybrid model. Eulerian computation of the turbulent gas phase consists of the second-moment closure for the momentum equations and the heat-flux transport closure for the energy equation. Lagrangian computation of the droplet phase consists of an anisotropic droplet dispersion model for the motion of droplets in turbulent gas flow. Complete initial conditions from experimental measurements were used to investigate the effects of gas temperature fluctuation on droplet evaporation. Numerical results for the droplet phase obtained by including and excluding gas temperature fluctuation in the droplet Lagrangian equations were compared with each other, together with the experimental measurements. It was found that the inclusion of the gas temperature fluctuation has a strong effect on the vaporization of individual droplets, but has a negligible effect on global spray properties of ensemble-averaged droplet properties such as the velocity, diameter, and mass flux.


Articles with similar content:

NUMERICAL SIMULATIONS OF TURBULENT POLY-DISPERSE ACETONE SPRAY FLOWS USING A TRANSPORTED JOINT PROBABILITY DENSITY FUNCTION METHOD
Atomization and Sprays, Vol.26, 2016, issue 3
Eva Gutheil, Y. Hu
AN ENGINEERING MODEL FOR THE FUEL SPRAY FORMATION OF DEFORMING DROPLETS
Atomization and Sprays, Vol.14, 2004, issue 4
Goodarz Ahmadi, William Kvasnak, David J. Schmidt
EULER/LAGRANGE CALCULATIONS OF TURBULENT SPRAYS: THE EFFECT OF DROPLET COLLISIONS AND COALESCENCE
Atomization and Sprays, Vol.10, 2000, issue 1
S. Hohmann, M. Ruger, Martin Sommerfeld, Gangolf Kohnen
NUMERICAL PREDICTION OF NONEVAPORATING AND EVAPORATING FUEL SPRAYS UNDER NONREACTIVE CONDITIONS
Atomization and Sprays, Vol.2, 1992, issue 4
Jose C. F. Pereira, X.-Q. Chen
A NEW MODEL FOR TURBULENT FLOWS WITH LARGE DENSITY FLUCTUATIONS: APPLICATION TO LIQUID ATOMIZATION
Atomization and Sprays, Vol.17, 2007, issue 4
Pierre-Arnaud Beau, R. Borghi, Francois-Xavier Demoulin, Arnaud Mura, Gregory Blokkeel