[vidyadhar]

Hi
I have done my simulation using Fluent.
I want to implement Lambda2 method in paraview.


Does this work in paraview:


eigenvalue(strain(Velocity)**2 + (Gradients - strain(Velocity)**)2)



In my case gradient of unstructured data set filter is taking very long time to compute



Or is there any easier alternative to visualize vortices.


Thanks in advance

[hxaxtma]

You could use the Q-criterion instead of Lambda2. This is already implemented in the unstructured gradient dataset (click on the gear for more options). Keep in mind, for Q-criterion the isovalue should be positive by definition.