Heat Fluxes Visualization in High Speed Flow behind the Shock Wave

The paper presents the thermographic studies of unsteady heat fluxes behind a plane shock wave in rectangular 24x48 mm tube test section. Consecutive panoramic visualization plots on streamlined walls after interaction with obstacle fixed channel wall are obtained. duration recorded thermal processes is up to 40 milliseconds passage. heating and cooling chamber by supersonic flow visualized using Telops FAST M200 high-speed infrared camera (operating range 1.5 – 5.1 microns) through quartz windows transparent radiation. Visualization fields were compared shadow images results 2D numerical simulation nonstationary gas dynamic process diffraction Mach numbers M=2.0-4.5.