Investigation of pressure and the Lewis number effects in the context of algebraic flame surface density closure for LES of premixed turbulent combustion
Investigation of pressure and the Lewis number effects in the context of algebraic flame surface density closure for LES of premixed turbulent combustion
复制标题
预混湍流燃烧 LES 代数火焰表面密度闭合背景下压力和路易斯数效应的研究
DOI:
10.1007/s00162-020-00543-x
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发表时间:
2021
影响因子:
3.4
通讯作者:
Pfitzner
中科院分区:
文献类型:
--
作者:
Allauddin;Lomada;S. R. R.;Pfitzner
Large scale industrial combustion devices, for example, internal combustion engines, gas turbine combustors, etc., operate under high-pressure conditions and utilize a variety of fuels. Unfortunately, the majority of the current numerical combustion modelling approaches are not fully validated for high-pressure and the non-unity Lewis number (thermal diffusivity/mass diffusivity) effects in premixed turbulent combustion. In any case, a numerical model needs to be checked for the effects of these parameters to guarantee generality of the model. In the present study, these two critical features of the models are numerically explored utilizing fundamental elements of several algebraic flame surface density reaction rate closure models accessible in the open literature. The Lewis number impact is likewise examined utilizing LES of recently published subgrid scale fractal flame surface density model, which indicated acceptable results for high and low-pressure methane fuelled applications. The computed numerical results are compared with an extensive experimental dataset for lean methane and propane fuels featuring various flow and turbulence conditions at operating pressures in the range of 1–10 bar. The quantitative results from most of the selected models do not show the experimentally observed trends at high-pressures and for non-unity Le number fuels. Modifications to the models are incorporated to reflect effects of these two important parameters utilizing a broad parametric investigation resulting in a satisfactory agreement with the experimental data.
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DOI:
10.1080/10407782.2016.1257309
发表时间:
2017-01
期刊:
Numerical Heat Transfer, Part A: Applications
影响因子:
--
作者:
U. Allauddin;M. Klein;M. Pfitzner;N. Chakraborty
通讯作者:
U. Allauddin;M. Klein;M. Pfitzner;N. Chakraborty
影响因子:
4.4
作者:
Chakraborty, Nilanjan;Cant, R. S.
通讯作者:
Cant, R. S.
DOI:
--
发表时间:
2014
期刊:
影响因子:
--
作者:
U. Allauddin;R. Keppeler;M. Pfitzner
通讯作者:
M. Pfitzner
DOI:
--
发表时间:
2018
期刊:
Journal of Engineering For Gas Turbines and Power
影响因子:
--
作者:
U. Allauddin;M. Pfitzner
通讯作者:
M. Pfitzner
DOI:
--
发表时间:
2005
期刊:
影响因子:
--
作者:
S. Muppala;N. Aluri;F. Dinkelacker
通讯作者:
F. Dinkelacker