Title: DEFLECTION WITHOUT LOSSES THROUGH A CIRCULAR CASCADE
Abstract: This chapter analyzes deflection without losses through a circular cascade. In a circular cascade of blades the fluid flows radially inward or outward through the cascade; accordingly, in idealized flow, the presence of sources or sinks within the cascade must be assumed. In actual machines the fluid enters in an axial direction and is then deflected in the radial direction. In addition, the flow may have a tangential velocity component. In a straight cascade the change in velocity and pressure is caused by the cascade alone; on the other hand, in a circular cascade changes take place in front of and behind the cascade as well, because in every radial displacement the velocities change—essentially they are inversely proportional to the radius. The chapter considers a cascade of vanishingly small radial extent—that is, a cascade that consists of very small blades lying very close together; although the cascade is still a circular one, each small part of it can be considered as part of a straight cascade.
Publication Year: 1966
Publication Date: 1966-01-01
Language: en
Type: book-chapter
Indexed In: ['crossref']
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