Flow of compressible fluids
Subsonic and sonic flow through different measuring objects
Features
- investigation of flow in compressible fluids
- varied range of experiments for studying 
subsonic and sonic flow
- de Laval nozzle generates velocities up to Ma 1
Learning objectives/experiments
- pressure losses in pipes and pipe elbows
- flow in convergent/divergent nozzles
determine the speed of sound in air
- compare calculation methods for incompressible and compressible flow
- use complete continuity equation 
- determine mass flow rate using nozzle and volumetric flow rate using orifice
- record calibration curve for orifice
- record fan characteristic curve at different mass flow rates and speeds
Specification
[1] investigate flow of compressible fluids
[2] subsonic and sonic air flow
[3] variable speed on the radial fan for adjusting the mass flow rate
[4] minimised turbulence by drawing in air and optimum arrangement of the measuring objects
[5] transparent measuring objects with connectors for pressure measurement provide 
insight into the internal structure
[6] measuring nozzle for determining the mass flow rate
[7] pressure losses in subsonic flow in pipe elbows and various pipe sections
[8] pressure curve at subsonic and sonic nozzle flow
[9] orifice for determining volumetric flow rate by differential pressure measurement
[10] record fan characteristic curve using a throttle valve
[11] digital displays for pressures, velocity and speed