Supersonic wind tunnel with Schlieren optics Schlieren optics for visualisation of Mach lines and shock waves on drag bodies; interchangeable walls in the measuring section produce velocities up to Mach 1,8 Features - pressure curves and pressure losses at subsonic and supersonic flow - interchangeable walls in the measuring section for velocities up to Mach 1,8 - schlieren optics for visualisation of Mach lines and shock waves on drag bodies Learning objectives/experiments - pressure curves in supersonic nozzles (Laval nozzle) - pressure curves and losses in tunnel flows with Mach >1 - observe shock waves in drag bodies using Schlieren optics - determining the Mach number from the angle of the shock waves - comparison of theory and experiment Specification [1] investigation of pressure curves in supersonic flow [2] visualisation of Mach lines and shock waves using Schlieren optics [3] continuously operating, open supersonic wind tunnel, low pressure principle [4] positive displacement fan with variable speed [5] interchangeable walls in the measuring section produce velocities up to Mach 1,8 [6] drag bodies: rocket, projectile, double wedge and wedge [7] manometer for displaying the pressure in the measurement point [8] GUNT software for data acquisition via USB under Windows 10 Technical data Positive displacement fan, variable speed - sound-dampened, max. 84dB(A) - power consumption: 55kW Supersonic wind tunnel - cross-section of the measuring section: 100x25mm - interchangeable walls for measuring section -- 1x straight contour: Ma>1 -- 2x Laval contours: Ma 1,4 and Ma 1,8 Schlieren optics - halogen lamp with 50W and 100W - 2 adjustable parabolic mirrors - adjustable slit diaphragm - screen for Schlieren optics Drag bodies - wedge, double wedge, projectile, rocket Recommended ambient conditions: 40% rel. humidity at 25°C 400V, 50Hz, 3 phases LxWxH: 3500x810x1720mm (wind tunnel) LxWxH: 1420x1600x1750mm (fan) LxWxH: 1710x580x1450mm (Schlieren optics) Weight: approx. 1550kg (total)