Your Questions About Wind Turbine Design

Linda asks…Can someone please explain the aerodynamics of a horizontal-axis wind turbine?To explain the results of a science experiment, I need information on how one model turbine blade design (a pentagon) produces more electricity than others (trapezoid and rectangle). However, I don't quite understand the aerodynamic aspect of it all. Websites I have visited consist of formulas and descriptions of the standard example, an airplane's wings. However, this is not helping me in the least with

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