frozen-in property of vortex line
I am reading turbulence book written by Davidson. In chapter 2.3.3 the kelvin's theorem was explained. in page 49 in last paragraph this sentence was brought which is about the frozen-in property of vortex line:
"vortex line are frozen into a perfectly inviscid fluid in the sense that they move with the fluid."
unfortunately, I don't understand the meaning of this property and this sentence exactly.
does anyone know what the property is and explain it more?
thanks in advance.
"vortex line into a perfectly inviscid fluid moves with the flow"
You can find explanations in any handbook of fluid dynamics
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