NASA researchers used unsteady Pressure Sensitive Paint inside the Transonic Dynamics Tunnel at Langley Research Center, marking the first time the coating was tested on a large-scale, freely moving model in a low-oxygen environment.
Researchers Test the Benchmark Supercritical Wing at Langley Research Center
NASA’s Langley Research Center in Hampton, Virginia, hosted tests utilizing unsteady Pressure Sensitive Paint to study how air flows around a standard wind tunnel model known as the Benchmark Supercritical Wing inside the Transonic Dynamics Tunnel.
High-speed cameras captured every detail of the glow, which changes in brightness according to how much pressure the air flow applies to the wing surface. The specialized coating made the model wing glow pink-purple when exposed to ultraviolet lights as the team observed the test.
Researchers Combine Aerospace Tools for Advanced Computer Modeling
Benchmark wings do not represent a particular type of aircraft; instead, they serve as universal models designed to help researchers improve computer modeling using wind tunnel data collected by high-speed cameras. The evaluation combined two agency tools to visualize airflow patterns over surfaces.
This specific milestone marked the technique’s first use on a large-scale, freely moving model in a low-oxygen environment, an achievement made possible by the Transonic Dynamic Tunnel’s unique testing capabilities. Researchers at Langley and Ames Research Center in California’s Silicon Valley have worked to integrate the paint into wind tunnel tests for rockets and aircraft.
Engineers Plan Future Applications for Flexible Aircraft Designs
The successful demonstration opens the door for upcoming tests on flexible aircraft models designed to bend and adapt during flight to improve efficiency.
It lays the foundation for better simulations and designs as the agency advances the future of flight through cleaner data and improved computer modeling.