Quote:
Originally posted by krazy
hey guys. I'm not sure if this is still relevant, but nozzle design angles were being discussed further up. I was just reading about similar things for air ducting. An abrupt size change such as an orfice will kill flow and create turbulance. A slow taper is much better, but uses valuable space. 40 degrees is the maximum safe angle to reduce a nozzle at to maintain laminar flow. (when 0deg=no change, 90deg=orfice)
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There is a vast difference between an impingement nozzle used with water versus air.
yes, it will kill flow but increase velocity, as long as the pump can handle the extra head from the nozzle,because of the same amount of flow trying to fit through a much smaller opening basically.