Blade angles

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Blade angles

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Blade angles and relative angles

Three different angle distributions can be displayed for each span:

Blade angles βB —

Relative flow angle βF - - -

Ineffective relative flow angle -ᆞ-

With the specified incidence and deviation angles (see blade properties) and the attachment and detachment location (the latter is the Stanitz-Radius) relative flow angles can be determined based on the blade angles. An ineffective blade has got a relative flow angle distribution that does not change the pre-swirl.