- #1
Stevenyzs
- 17
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So I was reading about Vortices in Wikipedia, when I stumbled upon the explanation about Irrotational Vortices.
It states there that in Irrotational vortices, the fluid's flow velocity u, is inversely proportional to the distance r, from the vortex's axis.
Then, at the end of the explanation, it says that: "In an irrotational vortex, fluid moves at different speed in adjacent streamlines, so there is friction and therefore energy loss throughout the vortex, especially near the core." So the fluid's speed increases and decreases at the same time near the core/axis??
http://en.m.wikipedia.org/wiki/Vortex
It states there that in Irrotational vortices, the fluid's flow velocity u, is inversely proportional to the distance r, from the vortex's axis.
Then, at the end of the explanation, it says that: "In an irrotational vortex, fluid moves at different speed in adjacent streamlines, so there is friction and therefore energy loss throughout the vortex, especially near the core." So the fluid's speed increases and decreases at the same time near the core/axis??
http://en.m.wikipedia.org/wiki/Vortex