Article

NASA's Self-Aligned Focusing Schlieren (SAFS) system, developed in 2020, simplifies schlieren imaging in wind tunnel testing, significantly reducing setup time and costs. Adopted by over 50 institutions worldwide, including the University of Notre Dame and the University of Liverpool, it eliminates the need for dual-grid configurations, allowing flow visualization from one side. The technology aids in high-speed flow visualization and has received the R&D 100 Award for 2025.