Vortex Frequency

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Claudia Sanhueza Claudia Sanhueza
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Vortex Frequency

Hi Everyone,

I'm using PIVlab to study the vortex street downstream of a cylinder on a flume and I would like to know if there is any way to count the number of vortex in a second without counting frame by frame

Thanks!,
Claudia Sanhueza
William William
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Re: Vortex Frequency

No, there is not such a possibility. But, to make it easier to write a script for this, you could draw a vertical line behind the cylinder and extract one of the velocity components. That should make it much easier to detect peaks and calculate frequencies.

Please consider donating for the PIVlab project:
http://paypal.me/pools/c/81Y8wBVi4y

The developer needs to update to a recent Matlab release in order to keep the project running.