Stokes Number for Particle Motion?

[Mary_089]

Hello,
I have a question... With the Stokes Number you can derive if particles follow a streamline or not, right? Let's say I am in a windtunnel, the wind is coming from the east. And I have a tube in the wind tunnel (horizontally located) which is 180° opposite to the flow (the opening of the tube is located to the west), and which sucks air with a known flow into the tube. Now I want to know which particles (which diameter) will follow the streamlines to get inside the tube.
In principal, the Stokes Number would be appropriate... But i does not consider the flow inside the tube and the bend streamlines. So I am kind of helpless right now.

Thanks for any hints :)

 

[gtoguy97]

Yes, you can use the Stokes number to determine if particles will follow the streamlines or not. However, it is important to note that the Stokes number does not take into account the flow inside the tube and the bend of the streamlines. Therefore, it is necessary to consider other factors when determining if particles will follow the streamlines into the tube. For example, you may need to consider the drag forces acting on the particles in the flow. Additionally, the shape and size of the tube opening could also be important in determining whether particles will enter the tube or not.