Trying out a 36" drum fan to cool some rigs. Does it work?

I purchased a 36" drum fan to try and get some more cooling across these cards. The 3080, 3080ti and 3090 cards put out an absolute ton of heat.

Did it work? Not exactly. The air was very diffused, and therefore did not push across the cards hard enough to make a difference. This sort of fan would be better suited for a warehouse situation where you need to just get all the hot air in an area moved somewhere else.