Measurement on instantaneous flame front structure of turbulent premixed CH4-H2-air flames (PDF)
发布时间：2025-04-30
点击次数：
- 发布时间：
- 2025-04-30
- 论文名称：
- Measurement on instantaneous flame front structure of turbulent premixed CH4-H2-air flames (PDF)
- 发表刊物：
- Exp Thermal Fluid Sci
- 摘要：
- Instantaneous flame front structure of turbulent premixed CH4/H2/air flames (hydrogen fraction of 0%, 5%, 10% and 20% by mole fraction) was investigated quantitatively using a nozzle-type Bunsen burner. Hot wire anemometer and OH-PLIF were used to measure the turbulent flow and detect the instantaneous flame front structure, respectively. Turbulent burning velocity, ST, flame -PLIF images. Results show that the flame front structures of the turbulent premixed flames are the wrinkled flame front and it becomes much finer with the increase of turbulence intensity as well as hydrogen fraction. The value of ST/SL significantly increases with the increase of u'/SL and it slightly increases with the increase of hydrogen fraction. Flame surface density profile are symmetric and gives its maximum mainly due to the effect of flame volume. The mean flame volume of flame region obviously increases with the increase of turbulence intensity within the experimental range due to the increase in depth of the large scale flame wrinkles and flame height.
- 合写作者：
- Zhang M, Wang JH, Xie YL, Wei ZL, Jin W, Huang ZH
- 卷号：
- 2014, 52: 288-296
- 页面范围：
- 288-296
- 是否译文：
- 否
- 发表时间：
- 2014-01-20