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If a vortex transports air in a spiral staircase fashion. Then there will be periods where the vortex flow will travel towards a reference object, and periods where it moves away from said object.

If you have a vortex underneath the length of a surface, then at one point the vortex is pushing air up towards and against the surface, and at another the vortex is moving down and away.

That means that a vortex traveling down a surface can impart a cyclical up and down momentum on that surface if the vorticity is strong enough. The upward momentum of the vortex pushing up then the downward momentum pulling back down.

https://www.youtube.com/watch?v=1I2SlU0SYsQ

If a vortex transports air in a spiral staircase fashion. Then there will be periods where the vortex flow will travel towards a reference object, and periods where it moves away from said object. If you have a vortex underneath the length of a surface, then at one point the vortex is pushing air up towards and against the surface, and at another the vortex is moving down and away. That means that a vortex traveling down a surface can impart a cyclical up and down momentum on that surface if the vorticity is strong enough. The upward momentum of the vortex pushing up then the downward momentum pulling back down. https://www.youtube.com/watch?v=1I2SlU0SYsQ

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[–] • 0 pt

That's awesome, so the inlet would essentially be the exhaust of the turbine? That's how you create inflowing vortices, you need high pressure outside and low pressure inside.