Effect of relative velocity distribution on efficiency and exit flow of centrifugal impellers
Abstract
A quasithreedimensional flow analysis proposed by Senoo and Nakase (1972) is applied in order to estimate the relative velocity distribution within a centrifugal impeller, assuming that the flow is both isentropic and inviscid. The relationship between relative velocity distribution, impeller efficiency, and meridional exit flow is experimentally investigated for the case of shrouded impellers having various relative velocity distributions. Analytical results are used to establish design criteria for the relative velocity distribution of centrifugal impellers.
 Publication:

28th International Gas Turbine Conference and Exhibit
 Pub Date:
 March 1983
 Bibcode:
 1983gatu.confS....M
 Keywords:

 Centrifugal Compressors;
 Compressor Efficiency;
 Impellers;
 Outlet Flow;
 Rotor Aerodynamics;
 Turbocompressors;
 Compressor Rotors;
 Diffusion;
 Flow Velocity;
 Meridional Flow;
 Rotor Speed;
 Shrouded Turbines;
 Vaneless Diffusers;
 Fluid Mechanics and Heat Transfer