A model for the evaporation of a slowly moving droplet

G. Gogos, P. S. Ayyaswamy

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

The evaporation of a moving liquid drop has been investigated. The drop experiences an evaporation-induced radial velocity field while undergoing slow translation. In view of the large evaporation velocity, the flow field is not in the Stokes regime. Consequently, both the viscous and the inertial terms have been retained in the governing equations. While the flow and the transport processes in the gaseous phase and the droplet internal circulation are treated as quasisteady, the droplet heating is regarded as a transient process. The transport properties of the gaseous phase have been considered variable. The transport equations of the gaseous phase require analysis by a singular perturbation technique. The transient heating of the droplet interior is solved by a series truncation method. The solution of the total problem is obtained by coupling the results for the gaseous and liquid phases. The enhancement in the evaporation rate due to convective motion has been predicted. The friction, the pressure, and the evaporation drag coefficients have been individually predicted, and the total drag coefficient behavior has been discussed.

Original languageEnglish (US)
Pages (from-to)111-129
Number of pages19
JournalCombustion and Flame
Volume74
Issue number2
DOIs
StatePublished - Nov 1988

Fingerprint

Evaporation
evaporation
drag coefficients
Drag coefficient
transient heating
evaporation rate
Boiler circulation
Heating
Perturbation techniques
radial velocity
Liquids
flow distribution
liquid phases
friction
velocity distribution
transport properties
Transport properties
Flow fields
perturbation
heating

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Fuel Technology
  • Energy Engineering and Power Technology
  • Physics and Astronomy(all)

Cite this

A model for the evaporation of a slowly moving droplet. / Gogos, G.; Ayyaswamy, P. S.

In: Combustion and Flame, Vol. 74, No. 2, 11.1988, p. 111-129.

Research output: Contribution to journalArticle

Gogos, G. ; Ayyaswamy, P. S. / A model for the evaporation of a slowly moving droplet. In: Combustion and Flame. 1988 ; Vol. 74, No. 2. pp. 111-129.
@article{410583fd17e444659b608802da239550,
title = "A model for the evaporation of a slowly moving droplet",
abstract = "The evaporation of a moving liquid drop has been investigated. The drop experiences an evaporation-induced radial velocity field while undergoing slow translation. In view of the large evaporation velocity, the flow field is not in the Stokes regime. Consequently, both the viscous and the inertial terms have been retained in the governing equations. While the flow and the transport processes in the gaseous phase and the droplet internal circulation are treated as quasisteady, the droplet heating is regarded as a transient process. The transport properties of the gaseous phase have been considered variable. The transport equations of the gaseous phase require analysis by a singular perturbation technique. The transient heating of the droplet interior is solved by a series truncation method. The solution of the total problem is obtained by coupling the results for the gaseous and liquid phases. The enhancement in the evaporation rate due to convective motion has been predicted. The friction, the pressure, and the evaporation drag coefficients have been individually predicted, and the total drag coefficient behavior has been discussed.",
author = "G. Gogos and Ayyaswamy, {P. S.}",
year = "1988",
month = "11",
doi = "10.1016/0010-2180(88)90011-9",
language = "English (US)",
volume = "74",
pages = "111--129",
journal = "Combustion and Flame",
issn = "0010-2180",
publisher = "Elsevier Inc.",
number = "2",

}

TY - JOUR

T1 - A model for the evaporation of a slowly moving droplet

AU - Gogos, G.

AU - Ayyaswamy, P. S.

PY - 1988/11

Y1 - 1988/11

N2 - The evaporation of a moving liquid drop has been investigated. The drop experiences an evaporation-induced radial velocity field while undergoing slow translation. In view of the large evaporation velocity, the flow field is not in the Stokes regime. Consequently, both the viscous and the inertial terms have been retained in the governing equations. While the flow and the transport processes in the gaseous phase and the droplet internal circulation are treated as quasisteady, the droplet heating is regarded as a transient process. The transport properties of the gaseous phase have been considered variable. The transport equations of the gaseous phase require analysis by a singular perturbation technique. The transient heating of the droplet interior is solved by a series truncation method. The solution of the total problem is obtained by coupling the results for the gaseous and liquid phases. The enhancement in the evaporation rate due to convective motion has been predicted. The friction, the pressure, and the evaporation drag coefficients have been individually predicted, and the total drag coefficient behavior has been discussed.

AB - The evaporation of a moving liquid drop has been investigated. The drop experiences an evaporation-induced radial velocity field while undergoing slow translation. In view of the large evaporation velocity, the flow field is not in the Stokes regime. Consequently, both the viscous and the inertial terms have been retained in the governing equations. While the flow and the transport processes in the gaseous phase and the droplet internal circulation are treated as quasisteady, the droplet heating is regarded as a transient process. The transport properties of the gaseous phase have been considered variable. The transport equations of the gaseous phase require analysis by a singular perturbation technique. The transient heating of the droplet interior is solved by a series truncation method. The solution of the total problem is obtained by coupling the results for the gaseous and liquid phases. The enhancement in the evaporation rate due to convective motion has been predicted. The friction, the pressure, and the evaporation drag coefficients have been individually predicted, and the total drag coefficient behavior has been discussed.

UR - http://www.scopus.com/inward/record.url?scp=0024119091&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0024119091&partnerID=8YFLogxK

U2 - 10.1016/0010-2180(88)90011-9

DO - 10.1016/0010-2180(88)90011-9

M3 - Article

AN - SCOPUS:0024119091

VL - 74

SP - 111

EP - 129

JO - Combustion and Flame

JF - Combustion and Flame

SN - 0010-2180

IS - 2

ER -