Two-phase modeling of evaporation characteristics of blended methanol-ethanol droplets

S. Raghuram, Vasudevan Raghavan, Daniel N. Pope, George Gogos

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

The paper presents a two-phase numerical model to simulate transient vaporization of a spherical two-component liquid fuel droplet. The model considers variation of thermo-physical properties in both liquid- and vapor-phases, as functions of temperature and species concentrations. Multi-component diffusion and surface tension effects are also considered. The model has been validated using the experimental data available in literature. The validated model is used to study the vaporization characteristics of both suspended and moving methanol-ethanol blended droplets in an atmospheric pressure environment. Relative strengths of forced convection and Marangoni convection are studied and compared for both suspended and moving droplets. Results in terms of streamlines, isotherms and isopleths at different time instants are reported and discussed. For low relative velocities, solutal Marangoni effects are seen to be important.

Original languageEnglish (US)
Pages (from-to)46-59
Number of pages14
JournalInternational Journal of Multiphase Flow
Volume52
DOIs
StatePublished - Jun 1 2013

Fingerprint

Methanol
Evaporation
Ethanol
ethyl alcohol
methyl alcohol
evaporation
Vaporization
Liquid fuels
Forced convection
Marangoni convection
nomographs
liquid fuels
Atmospheric pressure
Isotherms
Surface tension
Numerical models
forced convection
thermophysical properties
Thermodynamic properties
Vapors

Keywords

  • Droplet vaporization
  • Marangoni convection
  • Methanol-ethanol blend
  • Moving droplet
  • Suspended droplet
  • Two-component droplet

ASJC Scopus subject areas

  • Mechanical Engineering
  • Physics and Astronomy(all)
  • Fluid Flow and Transfer Processes

Cite this

Two-phase modeling of evaporation characteristics of blended methanol-ethanol droplets. / Raghuram, S.; Raghavan, Vasudevan; Pope, Daniel N.; Gogos, George.

In: International Journal of Multiphase Flow, Vol. 52, 01.06.2013, p. 46-59.

Research output: Contribution to journalArticle

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