Plenary Speaker

Plenary Speaker V	Investigations in the Piston Driven Shock-tunnel HELM
Date / Time	17 July 2019, Wednesday / 09:00 - 09:45 hrs
Venue	LT7A
Speaker	Prof. Christian Mundt, Universität der Bundeswehr München, Germany

Biography

Studies of Mechanical engineering / Aero-/Astronautics at Techn. Universitaet München (Dipl.-Ing.) Received PhD (Dr.-Ing.) from Techn. Universitaet München 1980‐1982 Luftwaffe (German air force) 1987‐1993 R&D engineer with Messerschmitt-Bölkow-Blohm AG, now Airbus, main department: Prelimary design of high performance aircraft, department for theoretical aerodynamics and numerical methods 1993‐2002 R&D engineer with BMW Rolls-Royce Aeroengines GmbH, now Rolls-Royce Deutschland Ltd. & Co. KG, from 1998 Deputy head of Construction Powerplant-system and Powerplant-integration, Research and technology owner for integration and noise since 2002 Professor for Aerothermodynamics with Bundeswehr Universität München (Federal armed forces university) Research focus: High enthalpy / hypersonic flow, numerical and experimental simulation, radiation and laser optical measurements.

Abstract

For the experimental simulation of high speed / high Mach-number flows, free piston shocktunnels are used as a comparatively easy and cost-efficient method. At the "Universität der Bundeswehr" such a facility is operated for the investigation of aerothermodynamic characteristics of high velocity vehicles. Here, however, focus is laid on the investigation of the facility's behavior. The application of advanced measurement methods has been foreseen during the design of the tunnel. These are now used to investigate quantities during the operation in the tunnel. In the driver tube the piston dynamics is analysed by measuring the acceleration of the piston. At the end of the shock-tube, the Laser induced thermal acoustics method is used via the available optical access. Short duration, single shot measurements provide insight into the thermodynamic conditions after the shock and in front of the nozzle.