ISL Shock Tunnel Operation with Contoured Mach-4.5-6-8-10-Nozzles for Hypersonic Test Applications

Design of a 3D shape transitioning nozzle and experimental thrust measurements of an airframe integrated scramjet

“…The method has been used to successfully measure the forces on multiple small axisymmetric models (Sahoo et al, 2007;Saravanan et al, 2009). A variation of the accelerometer based force balance uses minimal friction ball bearings instead of rubber brushes to allow for motion in the axial direction (Joarder and Jagadeesh, 2004 Naumann et al (1993) were the first to use accelerometers on an unrestrained free flying model in the shock tunnel B (STB) of the French-German Research Institute Saint-Louis (ISL Sauerwein et al, 2015). They operated a pyrotechnically operated spring-loaded catch-and-release mechanism to ensure unrestrained motion of the experimental model.…”