Abstract The calibration data of a five-hole probe and six-hole designed for measurements in transonic turbomachinery flows are presented. probes feature special base pressure hole on the back side to avoid Mach number insensitivity near unity. There is only little literature available performance such probes, especially with large radial flow angles. To close this gap, calibrated angles up 32 ...

A mesh adaptation methodology for wall-modeled turbomachinery Large Eddy Simulation (LES) is proposed, simultaneously taking into account two quantities of interest: the average kinetic energy dissipation rate and normalized wall distance y+. This strategy first tested on a highly loaded transonic blade with separated flow, compared to wall-resolved LES results, as well experimental data. The a...

Time-series forecasting is the core of prognostics and health management (PHM) turbomachinery. However, missing data often occurs due to several reasons, such as failure sensors. These partially irregular greatly affect quality time-series modeling prediction most models assume that are sampled uniformly over time. Meanwhile, training process requires a large number samples Due various it diffi...

Gas foil bearing rotor (GFBR) systems have received significant interest in the field of rotordynamics and vibration analysis. GFBR a wide range high-speed turbomachinery applications. Due to high speed, these machines are susceptible rigorous instability. bearings instigate large amplitude vibrations at startup shut down severe subsynchronous motions during operations. Over years, numerous wor...

Abstract Turbomachinery blade rows can have non-uniform geometries due to design intent, manufacture errors or wear. When predictions are sought for the effect of such non-uniformities, it is generally case that whole assembly calculations needed. A spectral method used in this paper approximate flow fields but with significantly less computation cost. The projects perturbations geometry non-un...