Using paraview to visualise vorticity (Lambda2, vorticity, Q-Criterion)

copyright (C) 2011-2017

Please download the word document, which contains the details on setting up the Python Calculator filter to calc lambda2, and use the advanced option of ‘Gradient’ filter to calculate vorticity, Q-Criterion.

This code is not tested, some user has already report error, please use it as a starting point in your application.

Using Paraview to visualise vortex by lambda2



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

it should be

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

BSD documentation licensed Free for non-commercial usage only
Author: Qingfeng XIA
copyright (C) 2011-2017
please keep the original link in your reference.
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