STL and STEP files of hydrokinetic turbine rotors for river or tidal current.
Each rotor is computed by Heliciel at the current speed and tip speed ratio stated on its page, with power and power coefficient. The two-blade series is scaled from the 16 m tidal turbine supplied as a model with Heliciel, at the same tip speed ratio.
To create your own custom model and test its performance: Heliciel software
Model designed and computed with the Heliciel software (blade element momentum method, BEM). Design point: 2.4 m/s current, 291.2 rpm (tip speed ratio 6.35). Fast two-blade rotor scaled from the 16 m tidal turbine supplied as a model with Heliciel (NACA 64-418 section), at the same tip speed ratio.
Model designed and computed with the Heliciel software (blade element momentum method, BEM). Design point: 2.4 m/s current, 194.1 rpm (tip speed ratio 6.35). Fast two-blade rotor scaled from the 16 m tidal turbine supplied as a model with Heliciel (NACA 64-418 section), at the same tip speed ratio.
Model designed and computed with the Heliciel software (blade element momentum method, BEM). Design point: 2.4 m/s current, 970.7 rpm (tip speed ratio 6.35). Fast two-blade rotor scaled from the 16 m tidal turbine supplied as a model with Heliciel (NACA 64-418 section), at the same tip speed ratio.
Model designed and computed with the Heliciel software (blade element momentum method, BEM). Design point: 2.4 m/s current, 582.4 rpm (tip speed ratio 6.35). Fast two-blade rotor scaled from the 16 m tidal turbine supplied as a model with Heliciel (NACA 64-418 section), at the same tip speed ratio.
Model designed and computed with the Heliciel software (blade element momentum method, BEM). Design point: 2.4 m/s current, 364 rpm (tip speed ratio 6.35). Fast two-blade rotor scaled from the 16 m tidal turbine supplied as a model with Heliciel (NACA 64-418 section), at the same tip speed ratio.
Model designed and computed with the Heliciel software (blade element momentum method, BEM). Design point: 2 m/s current, 255 rpm (tip speed ratio 2). Nine blades: high torque at low speed.
Model designed and computed with the Heliciel software (blade element momentum method, BEM). Design point: 2 m/s current, 191 rpm (tip speed ratio 2.5). Seven blades with rounded tips and 20° skew: high torque at low speed.
Model designed and computed with the Heliciel software (blade element momentum method, BEM). Design point: 2 m/s current, tip speed ratio 4. Blades with 15° skew.
Model designed and computed with the Heliciel software (blade element momentum method, BEM). Design point: 2 m/s current, 191 rpm (tip speed ratio 4). Winglets of 6 % of the radius, canted at 75°; their effect on tip losses is estimated by Heliciel's model.
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A .zip archive: full-definition STL, STEP, Heliciel .hlc project and description sheet. The download link is also sent by e-mail.
Prices include 20 % French VAT. Personal use: resale and redistribution of the files are forbidden.
A printed propeller must be checked before use, at a speed suited to its material. These models must never be fitted to a manned aircraft.
