Application of a robust β-pdf treatment to analysis of thermal NO formation in nonpremixed hydrogen-air flame

Ching Shun Chen, Keh Chin Chang, Jyh Yuan Chen

研究成果: Article同行評審

32 引文 斯高帕斯(Scopus)

摘要

The assumed β-pdf is widely used in turbulent flame simulation with the moment closure method. However, implementation of the β-pdf in turbulent flame simulation may sometimes encounter singularity difficulties in numerical calculation. The study proposes a robust β-pdf treatment to overcome these numerical difficulties. The proposed β-pdf treatment associated with the partial equilibrium chemistry model and the k-ε{lunate} turbulence model is firstly applied to the case of H2/N2-air nonpremixed flame to demonstrate its robustness. Then, the present method is applied to the study of thermal NO formation in H2-air nonpremixed flames. Comparison of results shows the present model to be capable of yielding fair agreement with the measurements. It is competitive with other more sophisticated methods, such as the pdf evolution method and the conditional moment closure method.

原文English
頁(從 - 到)375-390
頁數16
期刊Combustion and Flame
98
發行號4
DOIs
出版狀態Published - 1994 九月

All Science Journal Classification (ASJC) codes

  • 化學 (全部)
  • 化學工程 (全部)
  • 燃料技術
  • 能源工程與電力技術
  • 物理與天文學 (全部)

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