CFD analysis to study evaporation of a single ETHANOL/ISO-octane binary mixture droplet

Banerjee, Raja and Gopinath, R (2011) CFD analysis to study evaporation of a single ETHANOL/ISO-octane binary mixture droplet. In: ASME-JSME-KSME 2011 Joint Fluids Engineering Conference, AJK 2011, 24-29, July 2011, Hamamatsu; Japan.

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Abstract

Evaporation of a single droplet of a binary mixture of ethanol/iso-octane was numerically studied. Liquid/gas interface was tracked using VOF multiphase model. As ethanol and iso-octane form a highly non-ideal mixture, vapour-liquid-equilibrium (VLE) calculations were made using UNIFAC group contribution method. Source terms arising due to interfacial mass transfer are implemented in the continuity, momentum, energy and species equations. In this study, commercial CFD solver, Ansys Fluent 12.1 was used. VLE calculations and the source terms were implemented using user defined functions. A non-isothermal flow condition with droplet and surrounding medium at different temperatures was studied. Time history of temperature, evaporation rate, droplet size and shape were studied and reported. A parametric study of droplet composition and Reynolds number has been performed and reported in this study.

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IITH Creators:

IITH Creators	ORCiD
Banerjee, Raja	http://orcid.org/0000-0002-7163-1470

Item Type:

Conference or Workshop Item (Paper)

Uncontrolled Keywords:

Evaporation rate; Group contribution method; Highly non-ideal mixtures; Interfacial mass transfer; Multiphase model; Nonisothermal flows; Parametric study; User Defined Functions

Subjects:

Physics > Mechanical and aerospace

Divisions:

Department of Mechanical & Aerospace Engineering

Depositing User:

Team Library

Date Deposited:

29 Oct 2014 06:08

Last Modified:

31 Aug 2017 03:55

URI:

http://raiithold.iith.ac.in/id/eprint/493