| Topic for open discussion: Betz Limit
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| Aug. 13, 2020, post by Dave
Santos Deep Rotors can beat Betz (Newman 1986) This
wind turbine debate is long settled; Betz is not a very realistic limit
on wind turbine performance, as a simplified thin disc model. A deep
enough turbine of multi discs, like an ST, or even just a long
Archimedes' Screw, can beat Betz. This is another ST proto-conception-
"By
using multiple “actuator disks,” these designs can exceed the Betz
limit of a single-stage turbine for the same stream tube area (Newman
1986)." Investigation of Innovative Rotor Concepts for the Big Adaptive Rotor Project |