Blade forms

Whilst the variety of blade forms available for centrifugal fans is considerable, not nearly the same range is available in axial flow fans (Figures 1.86).

Blade forms

Figure 1.86 Axial flow impellers — variety of blade forms

Forced vortex blade

Arbitrary vortex blade

The blades may be designed to three principles:

Posted in Fans Ventilation A Practical Guide


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