Status and Prospect of PSP/TSP

Abstract

The “third wave" of PSP/TSP development has arisen and Japan plays a central role in R&D of this technology. Current activities are focused on two aspects; the application to industries and the expansion of application fields. Industrial applications of the techniques have been pursued particularly in the fields of transportation and energy. The performance and measurement accuracy of PSP/TSP keep improving progressively. The current targets of PSP are to measure small pressure fluctuation which acts as the source of aerodynamic noise, pressure fluctuation on a blade with high-speed rotation, and so on. For TSP, measurement of temperature fluctuation due to combustion in the high-temperature region exceeding 1000 degrees in Celsius is feasible. Since PSP/TSP is a system measurement technique, integration of PSP/TSP with MEMS and IoT (Internet of Things) is expected. In the near future, PSP/TSP will advance not only as flow visualization techniques but also flow control technology with various types of actuators.