Particle trace across aerofoil

Hi,
I am having trouble with producing the particle trace just going across the aerofoil to show the use of the actuator with the streamline. The issue I’m having is confusing and for some reason it is looping itself in the flow field.
Any help or solutions would be very much appreciated.
Kind regards,
Celyn

Hi @cbarnett,

Thanks for posting your question. Could you please drop the project link here?

best,