# Vortex Circulation

**URL:** https://discourse.paraview.org/t/vortex-circulation/2882
**Category:** ParaView Support
**Tags:** python
**Created:** [October 31, 2019, 2:05am UTC](https://discourse.paraview.org/t/vortex-circulation/2882 "2019-10-31T02:05:54Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![S\_J](https://discourse.paraview.org/letter_avatar_proxy/v4/letter/s/dc4da7/32.png) [@S\_J](https://discourse.paraview.org/u/S_J)
#### Post date: [October 31, 2019, 2:05am UTC](https://discourse.paraview.org/t/vortex-circulation/2882/1 "2019-10-31T02:05:54Z")

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How can I identify the vortices and calculate the circulation by passing the x and y coordinates and velocity field?

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### Author: ![mwestphal](https://discourse.paraview.org/user_avatar/discourse.paraview.org/mwestphal/32/17_2.png) [@mwestphal](https://discourse.paraview.org/u/mwestphal)
#### Post date: [October 31, 2019, 8:10am UTC](https://discourse.paraview.org/t/vortex-circulation/2882/2 "2019-10-31T08:10:31Z")

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Hi S\_J, welcome to the ParaView community.

In order to be able to help you, please provide more information on what you are trying to do.  
If you could share a screenshot or a dataset, and then explain in more details, that would be good.