Hi all -
is there somewhere with information on the design of a venturi to produce suction or vacuum ?
We're trying to make a vacuum cleaner using compressed air and a coaxial venturi and figuring out how big to make the parts and what size ratio gives the best suction is turning out to be a problem.
A google turns up tons of venturi information but I couldn't find a design formula relating orifice size, main tube size and restriction size along with inlet pressure or flow rate.
Any pointers would be helpful...
Thanks in advance
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