... probes. The film-cooling effectiveness distribution is determined using the temperature-sensitive paint technique. Carbon dioxide was used as coolant to provide elevated density ratios of about 1.4. Although low thermal conductivity material is used for the endwall test plate, the measured temperature...

...S. J. Payne; A. J. W. Moxon The aspirating probe has recently been successfully used to measure entropy within a turbomachine; however, it was found that its sensitivity to total pressure and total temperature fluctuations was significantly altered at high frequencies. If the aspirating probe...

...Arnoud R. C. Franken; Paul C. Ivey The miniature multihole pneumatic pressure probe is widely regarded as a cost-effective, easy-to-use, and accurate method for performing two- or three-dimensional flow field measurements in turbomachinery. The major downside to the use of these probes...

...Jose´ L. Gilarranz; Andrew J. Ranz; Jason A. Kopko; James M. Sorokes This paper addresses the use of 5-hole probes in the testing of industrial centrifugal compressors. The 5-hole probes utilized for this work are of the conical-tip type and were used in a non-nulling configuration (i.e...

... in their leading-edge geometries. Detailed flow field measurements were made upstream and downstream of the cascades using three and seven-hole pressure probes and static pressure distributions were measured on the aerofoil surfaces. All measurements were made exclusively at the design incidence. The results from...

...A. Pfau; J. Schlienger; D. Rusch; A. I. Kalfas; R. S. Abhari This paper focuses on the flow within the inlet cavity of a turbine rotor tip labyrinth seal of a two stage axial research turbine. Highly resolved, steady and unsteady three-dimensional flow data are presented. The probes used here...

...Simon Coldrick; Paul Ivey; Roger Wells This paper describes preparatory work towards three-dimensional flowfield measurements downstream of the rotor in an industrial, multistage, axial compressor, using a pneumatic pressure probe. The probe is of the steady-state four-hole cobra probe type...

...N. A. Cumpsty [S0889-504X(00)01303-9] gas turbines measurement systems compressors probes flow control pressure sensors fluctuations stagnation flow This paper and its two companions (Parts 1&2) describe careful and meticulous work and I therefore hesitate to offer any...

...Peter Kupferschmied [S0889-504X(00)01903-6] gas turbines measurement systems probes compressors centrifuges aerodynamics heat transfer pressure sensors flow control The point made concerning the flow temperature indicated by probes with internal heat conduction is well taken...

...Pascal Ko¨ppel; Christian Roduner; Peter Kupferschmied; Georg Gyarmathy Typically several hundred million data points arise from a comprehensive measurement campaign carried out in a centrifugal compressor test rig with the fast-response aerodynamic probe system (see Part 1). In order to obtain...

...Peter Kupferschmied; Pascal Ko¨ppel; Christian Roduner; Georg Gyarmathy This contribution gives an overview of the current state, performance, and limitations of the fast-response aerodynamic probe measurement system developed at the Turbomachinery Lab of the ETH Zurich. In particular...

...Christian Roduner; Peter Kupferschmied; Pascal Ko¨ppel; Georg Gyarmathy The present paper, Part 2 of a trilogy, is primarily focussed on demonstrating the capabilities of a fast-response aerodynamic probe system configuration based on the simplest type of fast-response probe. A single cylindrical...