I am wondering if a pneumatic-based, paddle wheel-type lifting apparatus would have any practical application within the aeronautical or aerospace fields.
Please reference the conceptual drawing below.
It is showing radial bladed impellers ('paddle wheels') embedded halfway within an enclosure. The impellers are rotated by electric motors (although they can be any kind of motor). This enclosure has lower ambient pressure within it due to the suction of the intake pipe of the attached centrifugal blower. The centrifugal blower is being rotated by its own electric motor.
Since the impeller blades that are outside of the enclosure encounter higher air resistance/drag as compared to the blades within the enclosure, the paddle wheels should generate a net force in the direction indicated by the arrows on the impellers.
Although I do not believe that this lifting apparatus would be a replacement for aircraft propellers, I believe that it may have a practical application somewhere within the aeronautical/aerospace field, yet at this time I don't know what that would be. Perhaps one application would be that this lifting apparatus could be used on a STOL/VTOL aircraft or a drone to provide vertical lift/hovering capabilities.
Would this pneumatic-based, paddle wheel-type lifting apparatus have any practical application within the aeronautical or aerospace fields?
Edited the Title text and made wording edits to the Body text. Also, revised the original drawing and reposted it.