Sub-model to describe auto-ignition and combustion

在“描述自燃和燃烧的子模型”中，提出了一种描述自燃和燃烧的简化模型，用于模拟内燃过程。一个全面的模型是从几个模型中发展出来的，这些模型描述了从初步研究中获得的单一现象（自动点火，“热”燃烧）。该模型还真实地描述了单现象自燃与火焰传播之间的相互作用。整体模型以表格形式提供了各种热力学状态和混合条件（理想预混，不同层次的分层）的化学源项，这取决于过程变量和附加量（例如压力、焓、空气比、排气浓度、消散强度和方向以及波动）。通过与详细模拟的比较，对整体模型进行验证后，可以将其与LES代码相结合，用于内燃机过程的模拟。

In 'Sub-model to describe auto-ignition and combustion' a reduced model is developed to describe auto-ignition and combustion for the simulation of internal combustion processes. An over-all model is to develop from several models that describe the single phenomena (auto-ignition, 'hot' combustion) that are available from preliminary researches. The interaction between the single phenomena auto-ignition and flame propagation is also described by this model in a realistic way. The over-all model provides the chemical source-terms in a tabulated manner for a wide range of thermodynamic states and mixture conditions (ideal premixed, different levels of stratification), dependent on progress variable and additional quantities (e.g. pressure, enthalpy, air ratios, exhaust concentrations, intensity and direction of dissipation, and fluctuations). After validation of the over-all model due to comparison with detailed simulations it can be coupled with a LES code and used for simulations of internal combustion processes.