Compressible flow range Computer Linked: 
The phenomenon of compressible flow, sonic velocity and supersonic flow is possibly one of the most demanding areas of study for many students. The Base Unit consists of an instrumentation and control console that supplies a variable flow of compressed air to the range of optional modules, Brake Load Indicator: 0.01N resolution, Temperature Selector Switch, Thermocouple sockets: Six, Digital Tachometer Indicator, Return Air Flow meter: 0..12 g/s, Gauge Pressure: 0…1100 kN/m2, Includes 21 channel data logger With HDL software 48 screw terminals, push-on edge connection 20 external channels, 1 internal channel (mains Voltage) USB cable to PC USB port can be used via a USB splitter with up to 3 loggers. Utilises HDL software,Nozzle Pressure Distribution Module: Two convergent-divergent nozzles of with the same throat diameter but different discharge area and a single convergent nozzle having the same diameter are supplied and fit in the common test section. All three nozzles have axial static pressure tapings allowing the approach, throat and divergent section pressures to be measured. The variation of pressure ratio and mass flow may be investigated for all three nozzles. Standard unit includes convergent – divergent ducts designed to produce Mach 1.0 at the throat and supersonic velocities downstream. 

1. 2 x Convergent-Divergent 
2. 1 x Convergent 
3. 1 x Back Pressure Gauge: 0…1100kN/m2 
4. 8 x Nozzle Pressure Gauge 
5. 2 x Thermocouples 

Experimental reaction turbine computer linked: The Reaction Turbine Module turbine is a single stage, radial flow, two jet reaction machine, operating on air. With a throttle valve and belt brake dynamometer, inlet and outlet air temperatures are recorded allowing the temperature drop due to work output to be measured. Investigation of torque/speed and power/speed characteristics of a single stage reaction  turbine. Production of torque/speed and power/speed curves from a no load speed of approximately 35,000 rev/min to stall and at a range of inlet pressures. Determination of the isentropic efficiency of a turbine. Construction of retardation curve and from this the estimation of the effect of resistances due to mechanical and fluid frictionTurbine Speed: 35,000 rpm (continuous) Turbine Speed: 40,000 rpm (short periods only) Pressure Relief valve setting: 100kN/m2.