%0 Journal Article 
%A Glazkov, Anton
%A Fosas de Pando, Miguel Ángel
%A Schmid, Peter
%T Rotor-stator interactions in a model compressor stage: an unsteady dual analysis
%D 2025
%@ 0022-1120
%U http://hdl.handle.net/10498/39280
%X Rotor-stator interactions in turbomachines are characterised by a complex interplay of hydrodynamic instabilities, acoustic pressure waves and receptivity mechanisms, as well as the collision of coherent structures with the blade geometry. An unsteady dual analysis of self-excited instabilities and flow interactions, exemplified by a simple model compressor stage under subsonic conditions, is proposed and presented. Using a low-dissipation sliding-plane implementation, instability-resolving nonlinear-adjoint looping simulations provide detailed sensitivity information that allows for the dissection of the full flow into sub-components linked to distinct flow phenomena. This sensitivity information further links observed flow behaviour to its hydrodynamic or acoustic origin, thereby laying the foundation for a cause-and-effect analysis and for flow control.
%K computational methods
%K nonlinear instability
%K aeroacoustics
%~ Universidad de Cádiz