A method based on two-dimensional cascade theory is presented here to predict the characteristics of mixed flow impellers of high specific speed having a conical flow path. The theoretical characteristics are compared with the experimental results. Agreement is fairly good in the normal operating range, but some uncertainties exist in the assessment of appropriate slip factors and losses in the field of mixed flow rotor cascades, which need further studies. In the present case, the flow is assumed to be incompressible.
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