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2011 | OriginalPaper | Chapter

12. Evaporating Sprays

Author : F. X. Tanner

Published in: Handbook of Atomization and Sprays

Publisher: Springer US

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Abstract

Evaporation of multi-component liquid droplets is reviewed, and modeling approaches of various degrees of sophistication are discussed. First, the evaporation of a single droplet is considered from a general point of view by means of the conservation equations for mass, species and energy of the liquid and gas phases. Subsequently, additional assumptions and simplifications are discussed which lead to simpler evaporation models suitable for use in CFD spray calculations. In particular, the heat and mass transfer for forced and non-forced convection is expressed in terms of the Nusselt and Sherwood numbers. Finally, an evaporation model for sprays that is widely used in today’s CFD codes is presented.

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Footnotes
1
The Lewis number is the ratio of the mass diffusivity and the heat diffusivity.
 
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Metadata
Title
Evaporating Sprays
Author
F. X. Tanner
Copyright Year
2011
Publisher
Springer US
DOI
https://doi.org/10.1007/978-1-4419-7264-4_12

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