A Parabolic Temperature Profile Model for Heating of Droplets-Reference-Cited by-同舟云学术

A Parabolic Temperature Profile Model for Heating of Droplets

Published:2003-05-20 Issue:3 Volume:125 Page:535-537
ISSN:0022-1481
Container-title:Journal of Heat Transfer
language:en
Short-container-title:

Author:

Dombrovsky L. A.¹,Sazhin S. S.²

Affiliation:

1. Institute for High Temperatures, Krasnokazarmennaya 17A, Moscow 111250, Russia

2. School of Engineering, The University of Brighton, Brighton BN2 4GJ, UK

Abstract

A model for convective heating of droplets, which takes into account their finite thermal conductivity, is suggested. This model is based on the assumption of the parabolic temperature profile in the droplets. A rigorous numerical solution, without restrictions on temperature profiles inside droplets, is compared with predictions of the parabolic temperature profile and isothermal models. The comparison shows the applicability of the parabolic approximation to modelling of the heating of fuel droplets in realistic diesel engines. The simplicity of the model makes it particularly convenient for implementation into CFD codes.

Publisher

ASME International

Subject

Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science

Link

http://asmedigitalcollection.asme.org/heattransfer/article-pdf/125/3/535/5505955/523_1.pdf

Reference5 articles.

1. Sirignano, W. A., 1999, Fluid Dynamics and Transport of Droplets and Sprays, Cambridge University Press.

2. Bertoli, C., and na Migliaccio, M., 1999, “A Finite Conductivity Model for Diesel Spray Evaporation Computations,” Int. J. Heat Mass Transf., 20, pp. 552–561.

3. Dombrovsky, L. A. , 2000, “Thermal Radiation From Nonisothermal Spherical Particles of a Semitransparent Material,” Int. J. Heat Mass Transf., 43, pp. 1661–1672.

4. Sazhin, S. S., Feng, G., Heikal, M. R., Goldfarb, I., Goldshtein, V., and Kuzmenko, G., 2001, “Thermal Ignition Analysis of a Monodisperse Spray With Radiation,” Combust. Flame, 124, pp. 684–701.

5. Dombrovsky, L. A., and Ignatiev, M. B., 2001, “Inclusion of Nonisothermality of Particles in the Calculations and Diagnostics of Two-Phase Jets Used for Spray Coating,” High Temp., 39, pp. 134–141.

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