Schlieren Photograph of Intake Throat in The Supersonic Ramjet Engine Test

Abstract

The M5.5 free jet test of the ramjet engine system is conducted at Ramjet Test Facility (RJTF) of NAL Kakuda RC. The ramjet engine system is consisted of the fixed geometry air-intake, ram combustor, and Nozzle. The throat region of the air-intake is visualized with schlieren method. A simple zooming system is used for a small region visualization on large schlieren system.