Haven't tried but I have studied Tesla.
Quote:
That the rule for the PWTB is that it must have a volume of at least 8X one cylinder.
Preferably 11 to 15X the volume of one cylinder.
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Applying the same logic, the doodat would be larger than the cylinder.
It differs from a Tesla valve in that it's a 'blind alley'. Perhaps a ring of holes at the constricted end might help.