RT journal article
T1 Global stability analysis of an idealized compressor blade row. II. Multiple-blade interactions
A1 Glazkov, Anton
A1 Fosas de Pando, Miguel Ángel
A1 Schmid, Peter J.
A1 He, Li
A2 Ingeniería Mecánica y Diseño Industrial
AB A direct-adjoint mean flow global stability investigation of self-excited instabilities in an idealized, two-dimensional compressor blade row at off-design conditions is carried out. In this second part of the paper, the single-passage analysis is extended to multiblade passages by exploiting the properties of block-circulant matrices and Bloch-wave theory. By using this method, analyses for a large number of blade passages become computationally tangible, and the modal and nonmodal single-passage analysis from the first part of the paper can be augmented by considering multiblade effects arising in larger systems. This work shows that multiblade passages introduce additional unstable 10- and five-periodic synchronization structures arising from a tuned optimal phase relationship that is supported by the larger system. Self-excited low-frequency structures, which cannot be represented within a single-passage computation, are also uncovered and analyzed.
PB American Physical Society
SN 2469-990X
YR 2023
FD 2023
LK http://hdl.handle.net/10498/32318
UL http://hdl.handle.net/10498/32318
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 09-may-2026