Rotating fluid conduit utilized such a propeller or turbine, characterized by a rotating annulus, formed by a rotating inner hub and a rotating outer shell

摘要

A rotating fluid conduit, utilized such as a propeller or turbine, is disclosed that is characterized by a rotating annulus formed by a rotating inner hub and a rotating outer shell. Rotating internal vanes are arranged within the annulus and are affixed to the inner hub and the outer shell. The annulus area varies from the inlet to the outlet and the angle of the vanes, within the annulus, also varies to control the radial velocity and axial velocity of the fluid stream and thereby provide a corresponding change in the axially directed and radially directed energy of a fluid. This rotating fluid conduit is analytically calculated, to an exact solution, to deliver predictable performance at design and off design conditions.