基于事件的摄像机对空气辅助原子化器中初级原子化的时间分辨率成像进行评估
Kuppuraj Rajamanickam1, Yannis Hardalupas1
1Department of Mechanical Engineering, Imperial College London, London, UK.
概括
基于事件的摄像机为初级原子化提供了有希望的时间分辨率成像,捕获与高速摄像机相比的流统计数据. 对于喷雾成像应用,发现了诸如事件和等局限性.
科学领域:
- 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:
- 初级原子化对于燃料注入和喷雾过程至关重要.
- 高速成像对于理解液体喷射裂变动态至关重要.
研究的目的:
- 展示和评估基于事件的 (EB) 摄像机,用于初级原子化的时间分辨率成像.
- 为了比较EB摄像机的性能与喷雾成像中的传统高速摄像机.
主要方法:
- 使用EB和高速摄像头进行同时成像,用于空气辅助原子化器的初级原子化.
- 对三个原子化模式的分析:柱状,袋状和多模式.
- 动态模式分解 (DMD) 的应用,以提取流统计数据和连贯结构.
主要成果:
- EB摄像机提供了与初级原子化高速摄像机相似的DMD频谱和空间模式.
- EB摄像机显示了在喷雾动态中捕获光谱内容和连贯结构的潜力.
- 观察并解释了EB摄像机在DMD模式预测中的差异,并指出事件和是限制.
结论:
- 基于事件的摄像机是时间分辨率喷雾成像的可行工具,特别是用于初级原子化.
- EB摄像机可以有效地提取流统计数据和液体分解的光谱特征.
- 需要进一步研究EB摄像机的局限性,以优化其在先进喷雾诊断中的使用.
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