A test of validation of turbulent premixed models for high-pressure bunsen flames
A test of validation of turbulent premixed models for high-pressure bunsen flames
复制标题
高压本生火焰湍流预混模型验证试验
DOI：
--
复制
发表时间：
2005
期刊：
影响因子：
--
通讯作者：
F. Dinkelacker
中科院分区：
文献类型：
--
作者：
S. Muppala;N. Aluri;F. Dinkelacker
摘要本研究的主题是两个湍流预混代数反应封闭模型的数值评估-Lindstedt-Vaos（LV）的方法和Muppala-Dinkelacker（MD）的三参数火焰表面方法-增加压力。对10、20和30巴本生火焰的计算结果与小林等人的相应实验数据进行了比较。突出了在弱和高湍流高压下运行的模型的适用范围。LV模型被证实的湍流火焰速度的压力的影响，提出了一个新的压力相关的前因子到原来的反应关闭。MD模型（为1至10巴之间的压力开发）也显示出20和30巴情况下的良好预测性。* 通信作者：fdi@ltt.uni-erlangen.de欧洲燃烧会议论文集2005引言工业燃烧器或燃烧器通常在高压条件下操作，例如在燃气轮机中达到16至30巴的压力。然而，在这样的高压环境中的测量是有限的，因为在进行实验的困难。由于在这方面缺乏显著的实验数据，直到最近才对高压湍流预混火焰进行可靠的数值模拟。随着开创性的实验工作，
Abstract The theme of this study is the numerical evaluation of two turbulent premixed algebraic reaction closure models– the approach of Lindstedt-Vaos (LV) and a three-parameter flame surface approach of Muppala-Dinkelacker (MD) – for increased pressure. A comparison of the computed results obtained on Bunsen flames at 10, 20 and 30 bar with that of corresponding experimental data of Kobayashi et al . highlights the range of applicability of the models at weak and high turbulence operating under high pressures. The LV model is substantiated for the influence of pressure on turbulent flame speed, by proposing a new pressure-dependent pre-factor into the original reaction closure. The MD model (which was developed for pressures between 1 and 10 bar) shows good predictability also for the 20 and 30 bar cases. * Corresponding author: fdi@ltt.uni-erlangen.de Proceedings of the European Combustion Meeting 2005 Introduction Industrial burners or combustors generally operate under high-pressure conditions, reaching for instance in gas turbines pressures of 16 to 30 bar. However, measurements in such high-pressure environment are limited, because of difficulties in conducting experiments. Due to lack of notable experimental data in this direction, reliable numerical modelling of high-pressure turbulent premixed flames has not been done until recently. With the pioneering experimental work of