[Nek5000-users] Visualizing lambda2 vortices

[nek5000-users at lists.mcs.anl.gov]

Hi,

I was looking at Paul's pretty picture (
http://www.mcs.anl.gov/~fischer/cfd/hairpin_split.html) which I assume is
iso-surfaces of vorticity and had a question regarding visualizing lambda2
vortices. I have the lambda2 vortices calculated and stored as a passive
scalar in the field files but cant figure out a way to visualize them. How
do you generally visualize the dominant structures in the flow, say for eg,
the hairpin vortices in the same animation ?

Regards
Shriram
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