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Vorticity and Viscosity

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Old   October 27, 2014, 03:49
Default Vorticity and Viscosity
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Ruud Caljouw
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Hi All,

For a work project I need to revive my aerodynamics knowledge again. Can somebody help me with the distinction between vorticity and viscosity.

If a flow vorticity is not equal to zero, the flow is called rotational and the flow elements have a finite angular velocity. But does this also imply the flow is viscous. And vice versa, if viscosity is taken into account, can a flow be irrotational?

Thanks.
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Old   October 27, 2014, 04:51
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Filippo Maria Denaro
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Vorticity is a flow field, it obeys to an evolution equation that can be written also for zero viscosity...
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