u/Embarrassed_Fun_9764

I’m trying to understand what would happen in this pipe geometry.
If water enters from the top-left vertical section, would the pipe eventually fill completely with water, or would some air remain trapped in the lower horizontal section like in the image?
Pipe diameter is 3,8mm

In reality, this is not just one pipe, but two pipes with chambers: one arranged like in the image, and a second one mirrored to the right right next to it.

Any explanation about the flow behavior, air displacement, and pressure conditions would be appreciated.