Combustion noise is becoming increasingly important as a major noise source in
aeroengines and ground based gas turbines. This is partially because advances in design …

This study describes an analytical method for computing azimuthal modes due to
flame/acoustics coupling in annular combustors. It is based on a quasi-one-dimensional …

Thermo-acoustic instabilities in gas turbine engines are studied to avoid engine failure.
Compared to the engines with annular combustors, the can-annular combustor design …

An analysis is made of the noise generated during the passage of quiescent
temperature/entropy inhomogeneities through regions of rapidly accelerated mean flow …

Analytical and numerical assessments of the indirect noise generated through a nozzle are
presented. The configuration corresponds to an experiment achieved at DLR by Bake et …

This article revisits the problem of indirect combustion noise in nozzles of finite length. The
analytical model proposed by Moase for indirect combustion noise is rederived and applied …

Two mechanisms control sound generated by combustion in gas turbines: direct combustion
noise in which acoustic waves generated by the flame propagate from the combustion …

Measurements have been performed on a reversible-pump turbine model installed in a
closed loop conduit system. The characteristics of the unstable pump turbine in turbine …

This paper discusses a classical paradox in thermoacoustics when jump conditions are
derived for acoustic waves propagating through a thin flat flame. It shows why volume …

Combustion noise has recently been the subject of attention of both the aeroacoustic and
the combustion research communities. Over the last decades, engine manufacturershave …