Atmospheric Pressure Head in Orifices and Mouthpieces Formulas

The Atmospheric Pressure Head is considered for the liquid at venacontracta. And is denoted by H_a. Atmospheric Pressure Head is usually measured using the Meter for Length. Note that the value of Atmospheric Pressure Head is always negative.

Formulas to find Atmospheric Pressure Head in Orifices and Mouthpieces

fxAtmospheric pressure head at constant head and absolute pressure headGo

Orifices and Mouthpieces formulas that make use of Atmospheric Pressure Head

fxAbsolute pressure head at constant head and atmospheric pressure headGo

fxVelocity of liquid at C-C for Hc, Ha, and HGo

List of variables in Orifices and Mouthpieces formulas

fx Absolute Pressure Head Go

fx Constant Head Go

fx Velocity of Liquid Outlet Go

FAQ

What is the Atmospheric Pressure Head?

The Atmospheric Pressure Head is considered for the liquid at venacontracta. Atmospheric Pressure Head is usually measured using the Meter for Length. Note that the value of Atmospheric Pressure Head is always negative.

Can the Atmospheric Pressure Head be negative?

Yes, the Atmospheric Pressure Head, measured in Length can be negative.

What unit is used to measure Atmospheric Pressure Head?

Atmospheric Pressure Head is usually measured using the Meter[m] for Length. Millimeter[m], Kilometer[m], Decimeter[m] are the few other units in which Atmospheric Pressure Head can be measured.

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