Quote:
Originally posted by Balinju
but ben, wouldn't a low beta value be better for a nozzle. and we are going for a single nozzle not multiple
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No, I don't believe that B (Beta) makes any difference, it's just an added design parameter, to optimize the flow.
If you look at the two types of nozzles, they're actually very similar. R1 is smaller in the high-B design, because the diameter difference is smaller, i.e. the water flow isn't so much restricted by the nozzle. L1 is the same or smaller, again because the flow doesn't need to be straightened out as much.
If this nozzle spec is indeed for a water-to-air nozzle, the beveled angles would probably be radically different for a submerged jet. the 10 degree angle is the only one that's relevant (IMO) here, and given the much lower density of air, I would expect a submerged application to require an angle around 45 degrees, in the opposite direction, but I'm just guessing, I don't really know.