Impact of dynamic wrinkling model on the prediction accuracy using the F-TACLES combustion model in swirling premixed turbulent flames
Impact of dynamic wrinkling model on the prediction accuracy using the F-TACLES combustion model in swirling premixed turbulent flames
复制标题
动态起皱模型对旋流预混湍流火焰中 F-TACLES 燃烧模型预测精度的影响
DOI：
10.1016/j.proci.2012.06.150
复制
发表时间：
2013
影响因子：
1.9
通讯作者：
D. Veynante
中科院分区：
文献类型：
--
作者：
T. Schmitt;A. Sadiki;B. Fiorina;D. Veynante
基于过滤查找表的F-TACLES模型与Charlette等人提出的用于大涡模拟的动态幂函数褶皱模型相耦合。动态公式基于类似Germano的方法，并与F-TACLES模型完全一致，两者都基于火焰结构的高斯滤波。对旋流燃烧器Tecflam进行了数值模拟。使用非动态过程，其中起皱模型参数被设置为Charlette等人建议的值，导致数值结果和实验结果之间的偏差。然后使用两种方法应用动态过程：第一，假设参数在空间上是独立的(全局参数)；第二，假设它只依赖于离喷油器的下游距离。在这两种情况下，与实验数据相比，指数的动态确定导致了准确的结果。在本研究模拟的构型中，使用动态确定的全局参数足以正确地预测反应流动特性。
The F-TACLES model, based on a filtered look-up table, is coupled with a dynamic power-law wrinkling model for Large-Eddy Simulation proposed by Charlette et al. The dynamic formulation is based on a Germano-like approach and is fully consistent with the F-TACLES model, both being based on a Gaussian filtering of the flame structure. The turbulent swirl burner Tecflam is simulated. Using a non-dynamic procedure, where the wrinkling model parameter is set to the value suggested by Charlette et al., leads to departure between the numerical and experimental results. The dynamic procedure is then applied using two approaches: first, the parameter is assumed to be spatially independent (global parameter), second, it is assumed to dependent only on the downstream distance from injector. In both cases, the dynamic determination of the exponent leads to accurate results, when compared with experimental data. In the configuration simulated in this study, using a global parameter, but dynamically determined, is sufficient to properly predict the reacting flow properties.
影响因子：
4.4
作者：
G. Kuenne;A. Ketelheun;J. Janicka
通讯作者：
G. Kuenne;A. Ketelheun;J. Janicka