Learning about Innovation from the Beginnings of PSP/TSP

Abstract

Pressure and Temperature Sensitive Paint (PSP/TSP) became recognized by the experimental fluid dynamics community in 1990. In the three decades since then, PSP and TSP have become indispensable technologies for aerodynamic design and CFD validation. Japan has played a major role in the development of this innovative technology and is now recognized as one of the key players in the world. As a researcher who has been involved in PSP/TSP research since its early days, this article reviews the activities of the early days, which are unfamiliar to the younger generation. By summarizing the current status and future challenges of PSP/TSP, it is attempted to examine the true innovations that have realized this technology. In addition, some of the ideas that have appeared over the past 30 years but remain unfinished are introduced to inspire readers who are interested in studying the next generation of PSP/TSP technology.