@inproceedings{, author = {Bitter, Martin; Kožulović, Dragan}, title = {Total pressure losses from planar Particle Image Velocimetry data: A practical approach for accurate wake flow assessment at turbomachinery-relevant Mach & Reynolds numbers}, editor = {}, booktitle = {Proceedings of Global Power and Propulsion Society : GPPS Chania24, September 4-6, 2024}, series = {}, journal = {}, address = {}, publisher = {Global Power & Propulsion Society}, edition = {}, year = {2024}, isbn = {}, volume = {}, number = {}, pages = {1-12}, url = {https://gpps.global/wp-content/uploads/2024/09/GPPS-TC-2024_paper_131.pdf}, doi = {}, keywords = {}, abstract = {This work presents a hybrid approach for determining total pressure fields, which were reconstructed from Particle Image Velocimetry data and whose accuracy was raised through in-situ correction with probe-based reference data. The quality of this general approach is validated for turbomachinery-relevant Mach and Reynolds numbers using a cylinder in crossflow as a test case. Furthermore, the approach is applied to investigate the total pressure losses in the wake of a low-pressure turbine cascade. It is shown that the hybrid approach delivers total pressure loss fields over a wide Reynolds and Mach number range, which deviate from the highly accurate integral loss coefficients of a conventional loss traverse with probe-based measurement techniques for compressible flows by an absolute maximum of less than 2 %, but which delivers results at a much higher level of spatial resolution. For incompressible flows, the deviations are almost negligible at < 1%. The paper presents and discusses the exact methodology for both, the collection of experimental data and the outline of the developed approach.}, note = {}, }