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...

This article presents a proven but advantageous concept for blade tip clearance evaluation in turbomachinery. The system is based on heavy duty probes and a high frequency (HF) and amplifying electronic unit followed by a signal processing unit. Measurements are taken under high temperature and other severe conditions such as ionization. Every single blade can be observed. The signals are digit...

Tesla bladeless expanders are promising in energy harvesting and small-scale power generation applications due to their lower cost simplicity design. Although such exhibit very high rotor efficiency (analytical total static ~ 90%), it shows poor performance when coupled with a stator (experimental ~30%) losses present the stator-rotor interaction. This paper presents design experiment of novel,...

Abstract We report on a series of highly resolved large-eddy simulations the LS89 high-pressure turbine (HPT) vane, varying exit Mach number between Ma = 0.7 and 1.1. In order to accurately resolve blade boundary layers enforce pitchwise periodicity, we for first time use an overset mesh method, which consists O-type grid around overlapping with background H-type grid. The were conducted either...