Imperial College London
Alternate

ProfessorWilliamJones

Faculty of Engineering, Department of Mechanical Engineering

Professor
 
 
 
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Contact

 

+44 (0)20 7594 7037w.jones

 
 
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Assistant

 

Ms Fabienne Laperche +44 (0)20 7594 7033

 
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Location

 

607City and Guilds BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Gong:2021:10.1007/s10494-020-00240-z,
author = {Gong, Y and Jones, WP and Marquis, AJ},
doi = {10.1007/s10494-020-00240-z},
journal = {Flow, Turbulence and Combustion},
pages = {1379--1398},
title = {Study of a premixed turbulent counter-flow flame with a large eddy simulation method},
url = {http://dx.doi.org/10.1007/s10494-020-00240-z},
volume = {106},
year = {2021}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - The turbulent counter-flow flame (TCF) has proven to be a useful benchmark to study turbulence-chemistry interactions, however, the widely observed bulk flow fluctuations and their influence on the flame stability remain unclear. In the present work, premixed TCFs are studied numerically using a Large Eddy Simulation (LES) method. A transported probability density function (pdf) approach is adopted to simulate the sub-grid scale (sgs) turbulence-chemistry interactions. A solution to the joint sgs-pdf evolution equation for each of the relative scalars is obtained by the stochastic fields method. The chemistry is represented using a simplified chemical reaction mechanism containing 15 reaction steps and 19 species. This work compares results with two meshing strategies, with the domain inside nozzles included and excluded respectively. A conditional statistical approach is applied to filter out the large scale motions of the flame. With the use of digital turbulence, the velocity field in the flame region is well reproduced. The processes of local extinction and re-ignition are successfully captured and analysed together with the strain rate field, and local extinctions are found correlated to the turbulent structures in the reactant stream. The predicted probability of localised extinction is in good agreement with the measurements, and the influence of flame stoichiometry are also successfully reproduced. Overall, the current results serve to demonstrate the capability of the LES-pdf method in the study of the premixed opposed jet turbulent flames.
AU  - Gong,Y
AU  - Jones,WP
AU  - Marquis,AJ
DO  - 10.1007/s10494-020-00240-z
EP  - 1398
PY  - 2021///
SN  - 0003-6994
SP  - 1379
TI  - Study of a premixed turbulent counter-flow flame with a large eddy simulation method
T2  - Flow, Turbulence and Combustion
UR  - http://dx.doi.org/10.1007/s10494-020-00240-z
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000609365900001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - https://link.springer.com/article/10.1007%2Fs10494-020-00240-z
UR  - http://hdl.handle.net/10044/1/86843
VL  - 106
ER  -
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