Researches on the Performance of the Regenerative Type Fluid Machinery : 1st Report, Inner Flow and Performance Coefficients

抄録

The influences of the machine elements of regenerative type blowers on the performance and inner flow are investigated experimentally. In addition, the results are discussed from a view point of viscous effects on the pump performance and inner flow. It is concluded that relations between the machine elements and inner flow are in a similar tendency between pumps and blowers. Performance parameters of the pump and the blower are systematically arranged by using the same dimensionless parameter. Inner flows in the cross section and along the longitudinal direction of the flow channel are observed in blowers which have different vane angles. The performance curves are closely related with the back flow.