Flow prediction in a blower casing

Abstract

Using the assumption of inviscid and irrotational flow, a singularity method for computing the flow field in a radial-flow blower is presented. For a particular example, the influence of the geometry of the blower casing on the flow field in the casing is investigated. The details of the flow at the impeller outlet are analyzed. The circumferential inhomogeneity of the flow properties at the impeller outlet suggests that vorticity and fluid viscosity may play an important role for the flow behaviour in the blower.