Transonic axial flow compressors are fundamental components in aircraft engines as they
make it possible to maximize pressure ratios per stage unit. This is achieved through a …

Flow instability is a common issue encountered by high-speed compressors when they
operate outside of their optimal range, especially in highly loaded compressors. This study …

The turboshaft engine is the main power source of a helicopter. Under airborne conditions,
inlet distortion inevitably occurs at the entrance of the compressor because of factors such …

This paper reviews the literature published over the past 30 years on the blade-end
treatment in axial compressors. The blade-end treatment reduces the endwall losses and …

In order to improve the efficiency of aircraft engines, the reduction of clearances between
blade tips and their surrounding casing is one avenue manufacturers consider to lower …

Discrete tip injection (DTI) shows great promise for improving the operating stability of
transonic axial flow compressor (AFC) rotors. However, the design optimization of DTI …

The present work focuses multi-objective optimization of blade sweep for a Wells turbine.
The blade-sweep parameters at the mid and the tip sections are selected as design …

Three-dimensional numerical simulations of the effect of fouling on an axial compressor
stage were carried out. As a case study, the NASA Stage 37 was considered for the …

Modified Wells turbines allow an efficient use of the power contained in the ocean and sea
waves. The present study introduces the performance of an axial turbine which called Wells …

The turbomachinery cascades design is a typical high dimensional computationally
expensive and black box problem, thus a metamodel-based design optimization and data …