CPC F03D 1/0691 (2013.01) [F03B 13/264 (2013.01); F03B 17/061 (2013.01); F03D 1/0608 (2013.01); F03D 7/0224 (2013.01); F03D 7/043 (2013.01); F03D 13/10 (2016.05); F03D 13/40 (2016.05); F03D 17/00 (2016.05); F03D 7/047 (2013.01); F05B 2230/60 (2013.01); F05B 2240/14 (2013.01); F05B 2240/921 (2013.01); F05B 2250/15 (2013.01); F05B 2250/16 (2013.01); F05B 2250/232 (2013.01); F05B 2260/80 (2013.01); F05B 2260/96 (2013.01); F05B 2270/32 (2013.01); F05B 2270/331 (2013.01); F05B 2270/8042 (2013.01)] | 20 Claims |
1. A fluidic turbine comprising:
a hub that rotates about a center axis of rotation, aligned to a main shaft; and
a fluidic structure configured to be mounted onto the hub of a primary turbine that contributes torque to the main shaft through increasing at least one of lift and drag;
wherein the fluidic structure includes two or more curved fluidic elements that extend from an upstream tip that aligns to the center axis of rotation, to a downstream end at a radial position away from the center axis, and rotates about the center axis to contribute torque to the primary turbine, the two or more curved fluidic elements adapted to improve aerodynamic flow at a region spatially proximate to the a blade root region of the primary turbine, each curved fluidic element of the two or more curved fluidic element including a first portion closer to the upstream tip configured for contributing drag based torque, and a second portion further from the upstream tip configured for contributing lift based torque;
wherein in operation, the lift based torque is contributed when an incident fluid passes along a suction side of a curved fluidic element of the two or more curved fluidic elements to a pressure side of the curved fluidic element;
wherein approximately one third of each curved fluidic element is the first portion configured for contributing the drag based torque, and approximately two thirds of each curved fluidic element is the second portion configured for contributing the lift based torque, and
wherein in operation, the incident fluid is channeled from the hub towards the radial position, the incident fluid first providing the drag based torque by interacting with the first portion and then second providing the lift based torque by interacting with the second portion.
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