Video – Turbulent Science
Johns Hopkins researchers conduct experiments with a laser and model windmills inside a campus wind tunnel. The research demonstrated that 15 Rotor Diameter separation distances were optimal for maximising power generation efficiencies from each wind turbine.
Using turbine separation distances of 15 rotor diameters would prevent the wake turbulence generation of excessive infrasound and low frequency noise, which NASA researchers Shepherd and Hubbard demonstrated in 1989 could result from upwind bladed wind turbines, if there was turbulent inflow of air.
Video courtesy of Wind Turbine Syndrome. Learn more about this issue on the Wind Turbine Syndrome website.