Polar Velocity components

Hi, I have a cylindrical geometry and want to get the two velocity components in polar coordinates,
V_r & V_theta.

How to do that?

You can use the Calculator filter for that. Try those formulas:


Of course, x and y are coordinates. They can be accessed from the Calculator.

And please upvote this feature request if you’d like to have a built-in filter that can do such a transformation: Transforming results to user-defined (local) coordinate systems