• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Energy Conversion & Management >A new improvement on a chemical kinetic model of primary reference fuel for multi-dimensional CFD simulation
【24h】

A new improvement on a chemical kinetic model of primary reference fuel for multi-dimensional CFD simulation

机译：用于多维CFD模拟的主要参考燃料化学动力学模型的新改进

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In the present study, for the multi-dimensional CFD (computational fluid dynamics) combustion simulations of internal combustion engines, a new optimized chemical kinetic reaction mechanism for the oxidation of PRF (primary reference fuel) instead of gasoline has been developed. In order to carry out the in-depth research for combustion phenomenon of internal combustion engines, an optimized reduced PRF mechanism including more intermediate species and radicals was developed. The developed mechanism contains of iso-octane (C8H18) and n-heptane (C7H16) surrogates, which contains of 51-species and 193 reactions. Compared with many other mechanisms of PRF, more reactions of C-0-C-1 oxidation (100 reactions) are added in the present mechanism. In order to improve the performances of the model, the developed mechanism focused on the improvement through the prediction of the ignition delay time. The developed mechanism has been validated against various experimental and simulation data including shock tube data, laminar flame speed data and HCCI (homogeneous charge compression ignition) engine data. The results showed that the developed PRF mechanism was agreements with the experimental data and other approved reduced mechanisms, and it could be applied to the multi-dimensional CFD simulations for internal combustion engines. (C) 2015 Elsevier Ltd. All rights reserved.
机译：在本研究中，对于内燃机的多维CFD（计算流体动力学）燃烧模拟，已经开发了一种新的优化的化学动力学反应机理，用于代替汽油的PRF（主要参考燃料）的氧化。为了对内燃机的燃烧现象进行深入研究，开发了一种优化的还原PRF机理，该机理包括更多的中间物种和自由基。发达的机制包含异辛烷（C8H18）和正庚烷（C7H16）替代物，其中包含51种和193种反应。与PRF的许多其他机制相比，本机制中添加了更多的C-0-C-1氧化反应（100个反应）。为了改善模型的性能，开发的机制着重于通过预测点火延迟时间来进行改进。已针对各种实验和仿真数据（包括减震管数据，层流火焰速度数据和HCCI（均质充量压缩点火）发动机数据）对开发的机制进行了验证。结果表明，所开发的PRF机构与实验数据和其他已批准的简化机构相吻合，可将其应用于内燃机的多维CFD仿真中。 （C）2015 Elsevier Ltd.保留所有权利。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号