Acoustic and Large Eddy Simulation studies of azimuthal modes in annular combustion chambers

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Machine learning–accelerated computational fluid dynamics (2021, unknown): “For example, current state-of-the-art LES with mesh sizes of O(10) to O(100) million has been used in the design of internal combustion engines (16), gas turbine engines (17, 18), and turbomachinery (19).”
Modal dynamics of self-excited azimuthal instabilities in an annular combustion chamber (2013, background): “A recent LES simulation by the same group [29] showed over a limited time-series that self-excited azimuthal modes alternated between standing and spinning modes.”
On the dynamic nature of azimuthal thermoacoustic modes in annular gas turbine combustion chambers (2013, background): “In the work from [28] and [42], the simulated time corresponds to approximately hundred acoustic cycles during which the first azimuthal mode is standing for the first and last forty periods and rotates in between.”
Dynamics and control of premixed combustion systems based on flame transfer and describing functions (2020, background): “To limit the pressure drop through the injectors, their response to the pressure oscillation in the annular chamber often induce large perturbations of the mass flowrate through the discharge nozzle (Krebs et al. 2002; Wolf et al. 2012).”