Another airflow question

[amcdonald]

I'm wondering if the case 'grating' typically covering fans serves a functional purpose other than protecting fingers.
Is this machined hole-punching better than just a large hole? also wondering how the slightly offset (raised) metal affects airflow.
anyone understand the physics of airflow?

 

[deerslayer]

I hate physics, but I generally cut the factory "grating/grill" out on my cases. In my opinion, it allows for more airflow and quieter airflow, but of course that's just my opinion and i've been known to be wrong occasionally

 

[techfuzz]

Originally posted by: LyNx01
I hate physics, but I generally cut the factory "grating/grill" out on my cases. In my opinion, it allows for more airflow and quieter airflow, but of course that's just my opinion and i've been known to be wrong occasionally

Ditto for my cases, I remove that factory pre-cut grill. Then replace it with some kind of filter. If I'm stupid enough to stick my finger in the turning fan then I shouldn't be going inside a computer. IMO that's all those grills are there for, to prevent injury to someone who sticks their finger in the turning fan.

techfuzz