Imperial College London
Portrait Picture

Dr Lu Tian

Faculty of Engineering, Department of Mechanical Engineering

Honorary Lecturer
 
 
 
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Contact

 

l.tian14 CV

 
 
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Location

 

674City and Guilds BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@inproceedings{Tian:2017,
author = {Tian, L and Lindstedt, RP},
publisher = {The Combustion Institute},
title = {Transported PDF modelling and analysis of partially premixed flames},
url = {http://hdl.handle.net/10044/1/48420},
year = {2017}
}
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RIS format (EndNote, RefMan)

TY  - CPAPER
AB  - A hybrid finite volume – transported joint probability density function (FV/JPDF) method is used to model piloted flames with inhomogeneous inlets. The flames were experimentally investigated using a retractable central tube within the main burner to control the degree of mixing at the exit. A five-gas (C2H2, H2, CO2, N2, air) co–flow pilot located outside the burner was used to match the composition and adiabatic temperature of a stoichiometric methane/air flame.  The applied hybrid method features a flow field calculation using a time-dependent finite-volume based method closed at the second-moment level with the scalar field obtained at the joint-scalar (JPDF) level. The current methodology is applicable to both premixed combustion and diffusion-dominated regions without assumption regarding the inclusion of the chemistry. Results show that the current method can accurately capture the stratified premixed flame mode near the burner exit as well as the diffusion-dominated flame far downstream.  The transition between the combustion modes occurs around ten tube diameters downstream of the burner exit and it is observed that the flame structure is very sensitive to the prediction of the flow field in this region.
AU  - Tian,L
AU  - Lindstedt,RP
PB  - The Combustion Institute
PY  - 2017///
TI  - Transported PDF modelling and analysis of partially premixed flames
UR  - http://hdl.handle.net/10044/1/48420
ER  -
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