Pyrolysis in porous media: Part 1. Numerical model and parametric study
Pyrolysis in porous media: Part 1. Numerical model and parametric study
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DOI：
10.1016/j.enconman.2012.12.023
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发表时间：
2013-04
影响因子：
10.4
通讯作者：
L. Romagnosi;N. Gascoin;E. El-Tabach;I. Fedioun;M. Bouchez;J. Steelant
中科院分区：
文献类型：
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作者：
L. Romagnosi;N. Gascoin;E. El-Tabach;I. Fedioun;M. Bouchez;J. Steelant
通过碳氢化合物燃料对结构进行蒸发冷却是维持燃烧室中遇到的大量热负荷的一种方法。欧洲合作机构已成立，通过数值模拟研究流经多孔介质的流体流动，以帮助分析在热解状态（1200K，6MPa）下获得的实验结果。进行参数研究是为了了解多孔介质中速度数值模拟、多组分扩散、化学现场自适应表格的部署以及完美或真实流体特性的使用。由于多物理现象的复杂性，本工作旨在在与实验进行比较之前确保计算的可靠性。测试了十二烷热解的两种半详细动力学方案（多达 15 种物质和 20 个反应）。
Transpiration cooling of structures by means of hydrocarbon fuel is a way to sustain the large heat load encountered in combustion chambers. An European collaboration has been set up to investigate the fluid flow through porous media by means of numerical simulation in order to help analysing the experimental results obtained under pyrolysis regime (1200K, 6MPa). A parametric study is conducted to understand the effect of numerical modelling of velocity in the porous media, multi-component diffusion, the deployment of in situ adaptive tabulation for chemistry and the use of perfect or real fluid properties. Due to the complexity of multi-physics phenomena, this work intends to ensure the reliability of the calculations before comparing them with experiments. Two semi-detailed kinetic schemes for dodecane pyrolysis (up to 15 species and 20 reactions) are tested.