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bobo5195 · 03-16-2006, 03:19 PM

looks very good. I'm actually reading a paper right now on some prof who did exactly the same thing (only with compressed air) so the design obviously has some merit.

I'm unsure what you mean by crossflow, but crossflow + jet impingement is what they do in industry. In fact they bare use cups at all, just a horzontal flow and some jets. Can get about 3 times the performance over jets on a plate.

A general rule for jet impingement is more but smaller jets is better. decide what jet pressure drop your willing to accept and then see how small you can make your jets and that should tell you all you need to know. 200-300m/s is way way way off what you'll be getting. Take a look at a storm style design and work of that (flowrate per jet/area). should be some nice data in the storm g7 thread from awhile back.

03-16-2006, 03:19 PM	#11
bobo5195 Cooling Savant Join Date: Aug 2005 Location: uk Posts: 400	Re: Project Block looks very good. I'm actually reading a paper right now on some prof who did exactly the same thing (only with compressed air) so the design obviously has some merit. I'm unsure what you mean by crossflow, but crossflow + jet impingement is what they do in industry. In fact they bare use cups at all, just a horzontal flow and some jets. Can get about 3 times the performance over jets on a plate. A general rule for jet impingement is more but smaller jets is better. decide what jet pressure drop your willing to accept and then see how small you can make your jets and that should tell you all you need to know. 200-300m/s is way way way off what you'll be getting. Take a look at a storm style design and work of that (flowrate per jet/area). should be some nice data in the storm g7 thread from awhile back.