Wind tunnel testing of a 1.8 diameter wind turbine based on the design of Hugh Piggott. The first set of wind turbine tests will result in a powercurve for the potential aerodynamic performance for different types of loads on the turbine.
From a second set of wind tunnel tests the real powercurve will result. In this test the complete generator system including the battery will be tested. From this test also the furling behaviour will be identified.
Hugh Piggott says on his blog
“I am not sure that the wind tunnel will give a realistic idea of the way the turbine furls in real winds, but the testing is bound to reveal ways to improve the design”.