ABSTRACT
Laser diagnostics have attracted a great deal of attention in various industries because of the noncontact, fast response, and multidimensional features. There are numerous papers in which the excellent features of laser diagnostics have been demonstrated in practical conditions. However, in commercial plants and industrial systems such as turbines, boilers, engines, and so on, there are few measurement devices using laser diagnostics that have been used under actual operating conditions. The need for optical access (measurement windows) is also one of the negative factors for the practical applications of laser diagnostics. It is true that laser diagnostics have been demonstrated in a various —elds to elucidate the physical phenomena in industrial systems, and many of them have played signi—cant roles in the development of industrial systems. Although laser diagnostics are not required tools for machine designers to improve their systems, computational ›uid dynamics (CFD) has become a powerful tool for designers in almost all industrial —elds. It has also been applied to complicated systems including ›ows, chemical reactions, and heat and mass transfers. Laser diagnostics are still at an early stage of development in terms of industrial applications.
