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首页> 外文会议>IUTAM Symposium on Turbulent Mixing and Combustion, Jun 3-6, 2001, Kingston, Ontario, Canada >THREE-DIMENSIONAL DIRECT SIMULATIONS OF TURBULENT FLAMES USING REALISTIC CHEMISTRY MODELING
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THREE-DIMENSIONAL DIRECT SIMULATIONS OF TURBULENT FLAMES USING REALISTIC CHEMISTRY MODELING

机译：基于真实化学模型的湍流火焰三维直接模拟

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摘要

In order to progress in our understanding of combustion in turbulent flows, Direct Numerical Simulations (DNS) are ideally suited. When considering such problems as pollutant emission or stability limits, detailed models must generally be employed to describe the combustion and diffusion processes with an acceptable accuracy. Due to the huge cost of such simulations, they have been generally restricted to two-dimensional configurations up to now, leading to unsolved questions concerning the applicability of the obtained results. Considering the lasting growth in computer power and the latest progress in algorithms and programming languages, we recently decided to develop a three-dimensional DNS code, with the aim of keeping reasonable computing times. This is made possible mainly by combining a low-Mach number approach with a new and accurate reduction technique for the chemistry. Some examples of the obtained results are shown in this paper.
机译：为了进一步了解湍流燃烧，直接数值模拟（DNS）非常适合。在考虑污染物排放或稳定性限制等问题时，通常必须采用详细的模型来以可接受的精度描述燃烧和扩散过程。由于这种模拟的巨大成本，到目前为止，它们通常仅限于二维配置，从而导致与所获得结果的适用性有关的未解决问题。考虑到计算机功能的持续增长以及算法和编程语言的最新进展，我们最近决定开发三维DNS代码，以保持合理的计算时间。这主要是通过将低马赫数方法与化学新的精确还原技术相结合而实现的。本文显示了一些获得的结果的例子。

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