A reduced chemical kinetic model for IC engine combustion simulations with primary reference fuels
A reduced chemical kinetic model for IC engine combustion simulations with primary reference fuels
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DOI：
10.1016/j.combustflame.2008.05.002
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发表时间：
2008-12-01
影响因子：
4.4
通讯作者：
Reitz, Rolf D.
中科院分区：
文献类型：
--
作者：
Ra, Youngchul;Reitz, Rolf D.
提出了一种主要参考燃料(PRF)氧化的简化化学动力学机理，并在内燃机模型上进行了应用。从现有的正庚烷氧化还原反应机理出发，通过增加5个物种及其相应的反应，通过更新与一氧化碳和氢氧化有关的几个反应的反应速率常数，并通过优化选定的反应的反应速率常数，产生了一个新的还原正庚烷机理。使用类似的方法，建立了异辛烷氧化还原机理，并与正庚烷机理结合形成PRF机理。PRF机制的最终版本由41个物种和130个反应组成。通过激波管试验、均质压燃试验和直喷式发动机试验验证了本PRF机理的有效性。结果表明，该PRF机制为燃烧预测提供了可靠的性能，并提高了多维CFD模拟的计算效率。(C)2008年，燃烧研究所。爱思唯尔公司出版，版权所有。
A reduced chemical kinetic mechanism for the oxidation of primary reference fuel (PRF) has been developed and applied to model internal combustion engines. Starting from an existing reduced reaction mechanism for n-heptane oxidation, a new reduced n-heptane mechanism was generated by including in additional five species and their relevant reactions, by updating the reaction rate constants of several reactions pertaining to oxidation of carbon monoxide and hydrogen, and by optimizing reaction rate constants of selected reactions. Using a similar approach, a reduced mechanism for iso-octane oxidation with built and combined with the n-heptane mechanism to form a PRF mechanism. The final version of the PRF mechanism consists of 41 species and 130 reactions. Validation of the present PRF mechanism was performed with measurements from shock tube tests, and HCCI and direct injection engine experiments available in the literature. The results show that the present PRF mechanism gives reliable performance for combustion predictions, as well as Computational efficiency improvements for Multidimensional CFD Simulations. (C) 2008 The Combustion Institute. Published by Elsevier Inc. All rights reserved.