Laminar burning velocities and flame instabilities of of 2,5-dimethylfuran-air mixtures at elevated pressures (PDF)
发布时间：2025-04-30
点击次数：
- 发布时间：
- 2025-04-30
- 论文名称：
- Laminar burning velocities and flame instabilities of of 2,5-dimethylfuran-air mixtures at elevated pressures (PDF)
- 发表刊物：
- Combustion and Flame
- 摘要：
- An experimental investigation on laminar burning velocities and onset of flame instabilities on spherically expanding flames in 2,5-dimethylfuran-air mixtures at elevated pressures was conducted over a wide range of equivalence ratios. The laminar burning velocities, laminar burning fluxes and Markstein lengths at different equivalence ratios and initial pressures were obtained. Furthermore, the diffusional-thermal and hydrodynamic effects on flame front instabilities were specified, and the onset of cellularity was reported. Results show that laminar burning velocities are decreased with increasing initial pressure due to the increase of the free-stream density and the progressively more important three-body termination reactions. With increasing initial pressure, Markstein length decrease, while the laminar burning flux increases. Onsets of flame instabilities, expressed in terms of critical radius or Peclet number, were found to be promoted with increasing equivalence ratio and initial pressures, due to the combined effects of diffusional-thermal and hydrodynamic instabilities.
- 合写作者：
- Wu XS, Huang ZH, Wang XG, Jin C, Tang CL, Wei LX
- 卷号：
- 2011, 158(3): 539-546
- 页面范围：
- 539-546
- 是否译文：
- 否
- 发表时间：
- 2011-01-19