Simulation of MILD combustion using Perfectly Stirred Reactor model
Simulation of MILD combustion using Perfectly Stirred Reactor model
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DOI：
10.1016/j.proci.2016.06.007
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发表时间：
2017-01-01
影响因子：
3.4
通讯作者：
Swaminathan, N.
中科院分区：
文献类型：
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作者：
Chen, Z.;Reddy, V. M.;Swaminathan, N.
提出了一种基于完全搅拌反应器(PSR)的中、强低氧稀释(温和)燃烧的简单模型。PSR计算覆盖了整个可燃性范围，并使用列表化学方法和假定的联合概率密度函数(PDF)。在温和条件下的热稀释同向流动实验装置中，用该反应器模型模拟了两种氧气稀释水平下的射流。对平均温度、主要和次要物种质量分数的计算结果与实验数据和最近用多环境传输PDF方法得到的模拟结果进行了比较。总体而言，尽管CO生成的峰值超出了预测，但在三个不同的轴向位置观察到了很好的一致性。这表明所提出的PSR模型能够以较低的计算量有效地模拟轻度燃烧。(C)2016年，由燃烧研究所提供。由爱思唯尔公司出版。
A simple model based on a Perfectly Stirred Reactor (PSR) is proposed for moderate or intense low-oxygen dilution (MILD) combustion. The PSR calculation is performed covering the entire flammability range and the tabulated chemistry approach is used with a presumed joint probability density function (PDF). The jet, in hot and diluted coflow experimental set-up under MILD conditions, is simulated using this reactor model for two oxygen dilution levels. The computed results for mean temperature, major and minor species mass fractions are compared with the experimental data and simulation results obtained recently using a multi-environment transported PDF approach. Overall, a good agreement is observed at three different axial locations for these comparisons despite the over-predicted peak value of CO formation. This suggests that MILD combustion can be effectively modelled by the proposed PSR model with lower computational cost. (C) 2016 by The Combustion Institute. Published by Elsevier Inc.