Iodine Tagging Velocimetry in a Mach 10 Wake

摘要

The first demonstration of time-of-flight-based iodine tagging velocimetry (ITV) is presented. Transit times up to 10 μs are observed. ITV is well suited for spatially resolved velocimetry measurements to study the fundamental flow physics of cold-flow hypersonic near and far wakes. ITV has the added advantage of simplicity through use of a single laser and camera. Additional research is required to identify the reaction mechanism, to understand all subtleties of this process, and to determine if there are other emission pathways that can be used for velocimetry.