In future Ultra-High By-Pass Ratio turboengines, the turbomachinery noise (fan and turbine
stages mainly) is expected to increase significantly. A review of analytical models and …

The present paper is aimed at providing an updated review of prediction methods for the
aerodynamic noise of ducted rotor–stator stages. Indeed, ducted rotating-blade technologies …

This article describes a nonlinear frequency domain method for the simulation of unsteady
blade row interaction problems across several blade rows in turbomachinery. The capability …

Shape optimization in unsteady flow problems enables the consideration of dynamic effects
on design. The ability to treat unsteady effects is attractive, as it can provide performance …

Fuel efficiency of aircraft and helicopter becomes greater concern in recent years caused by
rising fuel costs and as well as environmental impact of aviation emissions. Modern …

The paper presents a rotor–stator coupling method for analyzing unsteady flow field within
multi-blade-row turbomachines using a frequency domain method. The coupling method is …

This paper extends the use of frequency-domain flow solvers to transonic buffet in turbulent
flow regime. To do so, a time-spectral method with frequency adaptation is developed for the …

Over the past years, nonlinear frequency-domain methods have become a state-of-the-art
technique for the numerical simulation of unsteady flow fields within multistage …

The aim of this paper is to demonstrate how the harmonic balance method can be used to
predict rotor–rotor and stator–stator interactions in turbomachinery. These interactions occur …

This paper presents an efficient approach for stabilizing solution and accelerating
convergence of a harmonic balance equation system for an efficient analysis of …