一个层状喷雾组燃烧实验 (LSGCE) 使用现场图像诊断方法和图像分析算法
Hengyi Zhou1,2, Xingxian Li1,2, Yu Cheng Liu1,2,3
1Center for Combustion Energy, Tsinghua University, Beijing 100084, China.
The Review of scientific instruments
|August 15, 2024
概括
一个新的实验平台可以进行明确的喷雾燃烧研究,捕获详细的滴水和火焰数据. 该系统有助于进一步了解,特别是在未稀释地区,以提高发动机性能.
科学领域:
- 燃烧科学 燃烧科学
- 流体动力学 流体动力学
- 光学诊断器的光学诊断系统
背景情况:
- 喷雾燃烧对于发动机效率至关重要.
- 了解非稀释喷雾燃烧需要精确定义的实验数据.
- 现有的实验设置往往缺乏详细,同步的测量.
研究的目的:
- 开发一个新的实验平台来研究喷雾燃烧.
- 为了使微观滴水和宏观火焰行为同步捕获.
- 为验证燃烧模型提供高质量的数据.
主要方法:
- 一个圆柱状的半层喷雾被产生并用热电线点燃.
- 采用了同步的现场微观滴滴成像和宏观火焰成像.
- 图像分析算法被开发用于滴滴统计和火焰传播数据.
主要成果:
- 该平台成功生成了稳定的喷雾,并捕获了详细的滴水和火焰动态.
- 得到了滴滴统计数据 (直径,速度,数量密度) 和火焰特征 (大小,位置,速度).
- 该系统可以在各种条件下工作 (Gig:0.01-0.06,Temp:RT-1400 K).
结论:
- 开发的实验平台为喷雾燃烧研究提供了简单而有效的配置.
- 它为推进喷雾燃烧的理解和建模提供了必要的数据.
- 该平台的紧型设计允许潜在的集成到微重力设施.
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