Assumed Radial Distributions of Inflow on the Blades

The foregoing results are valid for any radial form of induced velocity distribution across the disk. Assume for illustrative purposes that the inflow can be prescribed and expressed in the simple form

and substituting the result from Eq. 3.52 gives

_ 2(n + 1 У’2С^2 Pi ~ (3n + 2)л/2

It has been shown previously that the induced power can be written as

Notice that for n = 0 (uniform inflow) then к = 1 (ideal case). For n > 0, then /с > 1, and as the value of n increases к increases as the inflow becomes more heavily biased toward – the blade tips.