Abstract
The solution of the blade-to-blade (quasi-3-dimensional) steady, inviscid flow in turbomachines is considered as a quantitative prediction of the flow and as a good approximation of the real three-dimensional flow. The well known governing differential equation is of elliptic type and its numerical solution is a rather difficult problem (taking also into account the complex form of the S1 stream surface). By the procedure proposed, the S1 stream surface in the (m, θ) coordinate system is transformed into a rectangular (x,, y, space, by the application of the following transformation:x=m/L, (θ−θ1)/(θ2−θ1), whereθ1 and θ2 are the angular positions of the lines limiting the S1 surface, andL the length of the meridional projection of the blade.
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