Part cooling fan duct (again!)
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@smece Cheers, thanks I was meaning how do you make it visible. I'd thought of the smoke bombs used to test gas fire exhausts but thought there was far too much smoke. Model train engine smoke generators is a great shout. Someone had mentioned the water trick before and I had completely forgotten!
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@smece said in Part cooling fan duct (again!):
so I decided to go with the old proven way and use smoke
Would this help? https://www.draeger.com/en_uk/Products/Air-Flow-Tester
https://duckduckgo.com/?q=smoke+testers+air+flow&atb=v88-4_g&iar=images&iax=images&ia=images
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@zapta oh yes, it would, they use them in wind tunnels and a bunch of other places, but I can't find that locally, no store sells them... I even pinged some ppl that work in the air tunnel and they have no clue where I can buy them locally (they order them from some company that brings them all the consumables, and they can't spare any as .. dunno why actually, probably they don't like me enough
) ... I never held that in my hand so no clue how it actually works but I've seen it being used from the far and I'm sure it would be great for duct testing ... but, train smoke oil works ok and smoke machine is great (unfortunately don't ahve access to one any more, brother closed his club and moved to murica ) -
I wonder if a IR camera would be useful here. E.g. take an object, warm it a little, place under the nozzle with fan on, and observe the cooling temperature. After all this is what we care about, the cooling pattern.
https://www.amazon.com/Seek-Thermal-Compact-All-Purpose-MicroUSB/dp/B00NYWAHHM
