a better understanding of airflow.

[NoobPcBuilder22]

heya all , this question might be seen as a super noob question , but this one is trully killing me lol , now when a aftermark aircooler have something like ←↓ , i know the ↓ is the rotation but the ← which is the airflow mean that is sucking the air from de right for going to the left ?
Also , how do you know how is the airflow if the don't specify with ↓← ?

this is my current setup , i want to know if i need to change it or not.
http://imgur.com/a/2383u , both of the aircooler are ir the same position ↓←

all my airflow , if i did ok should be
upper case ↑↑↓
front one big aircooler ←
back ← (from cpu/water cooling like in the photo)(the corsair one i put it just now.)

thx for the help

 

[mcnumpty23]

you can tell just by looking at the fan blades

if you look straight at the fan and the blades are convex--ie they have the middle of the blade higher than the ends--call it like a bump in the middle of the blade--then they are pushing air away from you

if they are concave--ie the middle is lower down than the ends--call it like a dip in the middle of the blade they are moving air towards you


not sure if that makes sense lol

but i have looked at so many fans it makes sense to me--so even if no markings or labels just a quick look at the fan blades i know which is push and which pull

 

[mcnumpty23]

your corsair fan the label on the hub facing you and the red ring means its pushing air to the left--ie out through the radiator