Air flow rate and effective cross-sectional area calculator

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Estimate air flow rate.(Composite effective cross-sectional area can be estimated as well.)

STEP1 > Enter effective cross-sectional area.

※Click here to see the effective cross-sectional area of tubing




> Click here if estimating a composite effective cross-sectional area (effective cross-sectional area that is composed by multiple products)

There are two basic ways in which to connect more than two circuit components, series and parallel. Please enter to either input boxes.

Effective cross-sectional area
mm2
Effective cross-sectional area
mm2

 


Estimated effective cross-sectional area {{S1}} mm2
※This value is used for flow rate calculation at STEP2.

> Click here to estimate effective cross-sectional area from CV

CV (Coefficient of variation) × 18.45


 


Estimated effective cross-sectional area {{S2}} mm2
※This value is used for flow rate calculation at STEP2.


STEP2 > Enter the pressure value and the temperature.

Flow rate estimation of subsonic flow requires downstream pressure input.
Without entering downstream pressure, choked flow (Max. flow rate) shall be estimated.


Upstream pressure(PH
MPa
Downstream pressure(PL
MPa
Temperature
°C

 


Estimated flow rate {{Q}} L/min(ANR)