GOALI: Resonant Holographic Interferometry: Diagnostic Capabilities in Multi-Phase Flame Environments

摘要-邓恩-兰金 这是一个产学合作研究项目， 加州大学欧文分校和加利福尼亚州欧文市的Metro Laser。 共振全息干涉测量法（RHI）是一种基于激光的诊断方法， 结合了全息术的三维成像能力，相位， 干涉测量的灵敏检测和共振的物种特异性 谱 它通过同时记录两个全息图来实现这一点 在两个不同的波长，一个调谐在吸收线附近，另一个调谐在吸收线附近。 关闭了这个功能。 在重建时，产生的干涉条纹 唯一地对应于被询问的物种的密度， 来自背景物质、热和压力的相位贡献 不稳定性和光学像差被减去。 该方法具有 已在气相燃烧系统中得到成功验证。 在这 的努力，RHI应用于多相系统的第一次。 具体地说， 将分析液滴和喷雾燃烧系统的产物 数量上。 目前，介入式光学诊断技术已广泛应用于 气相燃烧系统和其它反应流系统。 这些 也正在考虑将方法并入主动控制系统。 然而，大多数这样的技术限于单相系统， 它们不适合于许多使用液体燃料的重要燃烧系统。 据推测，RHI可以克服这一障碍。

Abstract - Dunn-Rankin This is an industry-university cooperative research project between the University of California at Irvine and Metro Laser of Irvine, CA. Resonant holographic interferometry (RHI) is a laser-based diagnostic that combines the three-dimensional imaging capability of holography, the phase- sensitive detection of interferometry, and the species specificity of resonance spectroscopy. It accomplishes this by recording two simultaneous holograms at two different wavelengths, one tuned near an absorption line and the other tuned off this feature. Upon reconstruction, the resulting interference fringes correspond uniquely to the density of the species under interrogation while phase contributions from background species, thermal and pressure instabilities and optical aberrations are subtracted out. The approach has been successfully demonstrated in gas-phase combustion systems. In this effort, RHI is applied to multiphase systems for the first time. Specifically, products from droplet and spray combustion systems will be analyzed quantitatively. Now intrusive optical diagnostic techniques are commonly used in study of gas-phase combustion systems and other reacting flow systems. These methods are also being considered for incorporation in active control systems. However, most such techniques are limited to single-phase systems, making them unsuitable for many important combustion systems that use liquid fuels. It is speculated that RHI can overcome this hurdle.