The High Speed Linear Cascade (HSLC) is a blow down test facility, capable of producing engine-representative Reynolds and Mach numbers for investigating tip clearance flows. It is fitted with comprehensive instrumentation to measure a range of aerothermal parameters.
A 4-hole probe is used to measure exit aerodynamic loss close to the casing. A heater mesh and IR camera are employed to perform transient heat transfer tests, to calculate tip Heat Transfer Coefficient (HTC). Recently the rig has been upgraded with a fully controllable coolant system to enable tip Film Cooling Effectiveness measurements via Pressure Sensitive Paint (PSP) technique.