SBIR Phase I: 3-Component Molecular Tagging Velocimetry for Highly Transient Oxygenated Gaseous Flows

这个小型企业创新研究项目致力于分子标记测速技术(MTV)的发展及其在发动机缸内流动中的应用。拟议的研究部分涉及扩展现有的MTV系统，以便能够在圆柱体内的平面区域内测量三个速度分量(而不是两个分量)。此外，还建议将MTV从氮气流动扩展到空气流动。空气中氧气的存在缩短了荧光寿命，给MTV测量带来了挑战。针对这一问题提出了新的解决方案。如果成功，这项拟议的技术将使内燃机和其他燃烧设备变得更高效、更环保。这将有助于节省化石燃料能源，并将空气中的污染物降至最低。此外，拟议的MTV系统的研究应用将有助于改进发动机流动和运输现象的建模。新的计算工具将在整个流程工业的反应流模拟中有广泛的应用。

This Small Business Innovation Research project is concerned with the development of molecular tagging velocimetry (MTV) and its application to in-cylinder engine flows. The proposed research is partly concerned with expanding an existing MTV system to enable measurements of three velocity components (instead of two components) in a planar region within a cylinder. Further, extension of MTV from nitrogen flows to airflows is proposed. Presence of oxygen in air reduces the fluorescent lifetime and poses challenges for MTV measurements. Novel solutions to this problem are proposed. If successful, the proposed technology would enable more efficient and environmentally friendly IC engines and other combustion devices. This would help save fossil fuel energy and minimize air-borne pollutants. Additionally, research applications of the proposed MTV system would help improve modeling of engine flows and transport phenomena. The new computational tools would have wide applications in simulation of reacting flows throughout the process industry.