Induced Power Efficiency from a Dynamic Wake Model with Reverse Flow, Root Cut-Out, and Inflow Feedback

摘要

1. Computational numerical results (with RCAS), as found by Ormiston, are reproduced with a direct analytical method. 2. It is reverse flow that creates the singularity in induced power near u = 0.8. 3. The effect of inflow feedback is only significant in the presence of reverse flow. 4. Root cut-out shifts the singular advance ratio to higher values.