In this paper, the cross flow in several internal and external volutes of a small centrifugal compressor is examined to highlight its effects on compressor performance. Different levels of the loss associated with shear stress related to the vortices in the volute cross section are shown to be the reason behind the diverse performance of internal volutes and external volutes. A numerical simulation is carried out to substantiate this and to further study this effect of cross sectional shape of volutes.

This content is only available via PDF.
You do not currently have access to this content.