In this work, we investigate both numerically and theoretically the sound generated by
entropy waves passing through sudden area expansions. This is a canonical configuration …

This paper presents an analytic solution for the sound generated by rotor–stator interaction
for aerofoils with small camber and thickness subject to a background flow with small angle …

In gas turbines, flow fluctuations generated by the flame are accelerated through the turbine
and produce sound that may trigger combustion instabilities when propagating back to the …

This article presents a modelling approach to predict the low-frequency sound generated by
entropy fluctuations interacting with isolated aerofoils. A model of the acoustic field is …

For a single-component perfect gas, entropy perturbations are associated with the difference
between the overall density fluctuation and that coming from the acoustic perturbation …

The generation of noise by small amplitude entropic and compositional inhomogeneities
interacting with a rectilinear cascade of airfoils is investigated using analytic techniques. The …

This thesis is concerned with flows through cascades, ie periodic arrays of obstacles. Such
geometries are relevant to a range of physical scenarios, chiefly the aerodynamics and …

Entropy noise is the sound produced by the acceleration of convective temperature
fluctuations (entropy waves) by non-uniform flows and is a major contributor to indirect …