| 摘要 |
[Object] It is an object of the present invention to provide a wind turbine, a wind power generator, a hydraulic machine, a fluid machine utilizing an unsteady flow, and method for increasing a velocity of an inter flow, which can stabilize a flow involving a vortex street, increase a wind velocity of a wind flowing in, increase in size, and can generate power with high output. [Solution] A wind power generator 1 and a method for increasing a velocity of an internal flow of a fluid machine according to the present invention is characterized by having a non-streamline wind tunnel body 2 capable of forming a stable vortex street on a downstream side by internal and external flows, and an impeller 3 disposed inside the wind tunnel body 2, the wind tunnel body 2 having a vortex generator 2c for forming the vortex street on the downstream side, the vortex generator is provided with a phase control structure 4 which regulates a phase of a vortex formation that fluctuates along a circumferential direction in a plane including a rear face of the wind tunnel body 2 and which clarifies a cell structure to be formed along the circumferential direction of the wind tunnel body to fix, on a surface of the wind tunnel body 2, respective positions of cells into a plurality of segmented regions arranged in the circumferential direction, and the velocity of the internal flow is increased by the phase control structure. |
