An Optimized Pneumatic Probe for Investigation of Gas Turbine Aerodynamics in Full Scale Gas Turbines Available to Purchase

In this paper an optimized probe based on in house experience and literature studies for use in full scale gas turbines for power generation is presented. The main advantages of its design are the insensitivity of the probe head to unsteady wakes of blades, its high strength and suitability for high temperatures. Furthermore it is shown that the calibration function is unambiguous. The second part of the paper deals with correction methods for comparison to numerical methods such as difference in position, mass flow, bending of the probe and blockage effects. The methods are discussed by means of examples.