This physics question has divided my friends. I'd like input but I'm probably going to build a model anyway to prove it to myself. I'll listen to replies but they better be very good to prevent me from building a test model. Here goes, picture a 2" pipe, 8" long with 2,000 psi of air blasting through it to an open end. Now put say, ten small 1/4" tubes through the wall at an angle pointing downstream at an angle that would be normally create a drawing effect. Even the ends of the small tubes...
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