Abstract
gas flow in the interblade channels of the stationary cascade as they affect the choice of combination of numbers of moving and stationary blades with the analogous conditions for the onset of hydrodynamic disequilibrium, interpreted as the presence of transient periodic forces and torques acting on the stationary vanes of a turbomachine at the impeller blade frequencies with aerodynamic interaction of the cascades. We derive a relation for estimating the maximum ratio of the number of moving to stationary blades and the condition whereby acoustic pressure oscillations in harmonics of the impeller blade frequency are unamplified simultaneously in the gas flow in the interblade channels of the stationary cascade and in the discharge outlet of an axial:flow turbomachine. We demonstrate theoretically and confirm experimentally the possibility of the generation of pressure pulsations and, as a consequence, casing vibrations of turbomachinery in the presence of interaction of rotational pressure modes with the vanes of the stationary cascade in rotational harmonics of these modes that are multiples of the number
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Journal of Applied Mechanics and Technical Physics
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
