Validation of droplet evaporation models for a polydisperse spray in a non-swirling jet flame
File(s)
Published version
Author(s)
Noh, D
Gallot Lavallee, S
Jones, WP
Navarro-Martinez, S
Type
Conference Paper
Abstract
The present work aims to deliver a numerical investigation of the turbulent spray jet flame in the context of Large
Eddy Simulation. Several droplet evaporation models are studied in order to confirm their predictive capabilities in
terms of the time-averaged droplet temperature in the two-phase reactive flow. All the models under consideration
are found to capture the formation of a double reaction zone flame and the measured lift-off height within a good
level of accuracy. However, the simulated wet-bulb temperature in the hot burnt gas between the two reaction zones
is considerably higher in comparison to measurements. This large discrepancy thus requires a further investigation in
the evaporation modelling.
Eddy Simulation. Several droplet evaporation models are studied in order to confirm their predictive capabilities in
terms of the time-averaged droplet temperature in the two-phase reactive flow. All the models under consideration
are found to capture the formation of a double reaction zone flame and the measured lift-off height within a good
level of accuracy. However, the simulated wet-bulb temperature in the hot burnt gas between the two reaction zones
is considerably higher in comparison to measurements. This large discrepancy thus requires a further investigation in
the evaporation modelling.
Date Issued
2017-04-21
Date Acceptance
2016-11-21
Citation
2017
Publisher
Combustion Institute
Copyright Statement
© 2017 The Authors
Sponsor
ALSTOM (Switzerland) Ltd
Grant Number
4500697255
Source
European Combustion Meeting 2017
Publication Status
Published
Start Date
2017-04-18
Finish Date
2017-04-21
Coverage Spatial
Dubrovnik, Croatia