Thanks!
Is this about the total surface area of the vent? two 10 cm^2 vents amounts to the same Fb as one 20 cm^2 vent?More vents = wider vent = higher Fb
It was correct (maar niet helemaal ),
In practice it can be slightly different because two smaller ports have a different effect on the air in the port as one port has. That's also why rectangular ports have different effects than round ports (a round one would be, again slightly, better).
If I'm not mistaken the newer versions of WinISD (Pro) take this into account. The differences aren't huge but are there.
Mvg Johan
In practice it can be slightly different because two smaller ports have a different effect on the air in the port as one port has. That's also why rectangular ports have different effects than round ports (a round one would be, again slightly, better).
If I'm not mistaken the newer versions of WinISD (Pro) take this into account. The differences aren't huge but are there.
Mvg Johan
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