Difference between cylindrical symmetric and axi symmetric

[carstenp]

Hello,

Elmer offers the possibility to use cylindrical as well as axi symmetric coordinate systems.

What is the difference between both?

Cheers,

carsten

[raback]

Hi

Difference is only for vector fields. In axisymmetric cases cases you'll only have r- and z-components whereas in cylindrically symmetric you also have a phi-component. For example, in N-S you can model rotational systems. For many equations there is no difference.

-Peter

[carstenp]

Thank you for the explanation.

carsten