Imperial College London
Alternate

ProfessorWilliamJones

Faculty of Engineering, Department of Mechanical Engineering

Professor
 
 
 
//

Contact

 

+44 (0)20 7594 7037w.jones

 
 
//

Assistant

 

Ms Fabienne Laperche +44 (0)20 7594 7033

 
//

Location

 

607City and Guilds BuildingSouth Kensington Campus

//

Summary

 

Publications

Citation

BibTex format

@article{Gallot-Lavallee:2021:10.1007/s10494-021-00248-z,
author = {Gallot-Lavallee, S and Jones, WP and Marquis, AJ},
doi = {10.1007/s10494-021-00248-z},
journal = {Flow, Turbulence and Combustion},
pages = {709--743},
title = {Large eddy simulation of an ethanol spray flame with secondary droplet breakup},
url = {http://dx.doi.org/10.1007/s10494-021-00248-z},
volume = {107},
year = {2021}
}
Download

RIS format (EndNote, RefMan)

TY  - JOUR
AB  - A computational investigation of three configurations of the Delft Spray in Hot-diluted Co-flow (DSHC) is presented. The selected burner comprises a hollow cone pressure swirl atomiser, injecting an ethanol spray, located in the centre of a hot co-flow generator, with the conditions studied corresponding to Moderate or Intense Low-oxygen Dilution (MILD) combustion. The simulations are performed in the context of Large Eddy Simulation (LES) in combination with a transport equation for the joint probability density function (pdf) of the scalars, solved using the Eulerian stochastic field method. The liquid phase is simulated by the use of a Lagrangian point particle approach, where the sub-grid-scale interactions are modelled with a stochastic approach. Droplet breakup is represented by a simple primary breakup model in combination with a stochastic secondary breakup formulation. The approach requires only a minimal knowledge of the fuel injector and avoids the need to specify droplet size and velocity distributions at the injection point. The method produces satisfactory agreement with the experimental data and the velocity fields of the gas and liquid phase both averaged and ‘size-class by size-class’ are well depicted. Two widely accepted evaporation models, utilising a phase equilibrium assumption, are used to investigate the influence of evaporation on the evolution of the liquid phase and the effects on the flame. An analysis on the dynamics of stabilisation sheds light on the importance of droplet size in the three spray flames; different size droplets play different roles in the stabilisation of the flames.
AU  - Gallot-Lavallee,S
AU  - Jones,WP
AU  - Marquis,AJ
DO  - 10.1007/s10494-021-00248-z
EP  - 743
PY  - 2021///
SN  - 0003-6994
SP  - 709
TI  - Large eddy simulation of an ethanol spray flame with secondary droplet breakup
T2  - Flow, Turbulence and Combustion
UR  - http://dx.doi.org/10.1007/s10494-021-00248-z
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000635867600001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - https://link.springer.com/article/10.1007%2Fs10494-021-00248-z
UR  - http://hdl.handle.net/10044/1/91234
VL  - 107
ER  -
Download