Velocity & Trumpet stack desig
I've tried creating a velocity stack that slightly protrudes outwards and above the surface with Fillet and Extrude options, but have not been able to figure it out .It must be something simple I'm missing, does anyone know hot make this "trumpet" shape like in these pictures?:. I will tell you this.The biggest benefit is going to come by sticking the stack up into the plenum, rather than on the surface of it.The first screen shot will flow a lot better than the second/third.This is because of the friction between the outer layer of air and the surface of the plenum.If the stack isnt against the wall it wont have these eddies which will actually reduce the effective cross sectional area by up to 10%!
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