OPTICAL DIAGNOSTICS FOR AEROSPACE AND TURBOMACHINERY APPLICATIONS

Understanding the properties of complex reacting and non-reacting fluid flows is important for quantification and determination of parameters such as pressures, temperatures, velocities, and densities among many others. The use of conventional (intrusive) technologies, while sufficient in a limited way (and for simpler flows), may be overextended for more complex experimental flows (e.g., high-speed, high-temperature, etc.). The development and application of advanced non-intrusive (minimal/no-contact) optical diagnostics has offered the extended opportunities to successfully interrogate such complex flows. In this review paper, a broad consideration of some of the developed advanced optical diagnostics techniques is considered, including both seeded and unseeded methods. Applications to aerospace, combustion, and turbomachinery of the various optical diagnostics methods are discussed in an effort to summarize some of the advantages and challenges for each particular optical diagnostic method.