Critical Depth of Weir in Flow Over Notches and Weirs Formulas

The Critical Depth of Weir is defined as the depth of flow where energy is at a minimum for a particular discharge. And is denoted by h_c. Critical Depth of Weir is usually measured using the Meter for Length. Note that the value of Critical Depth of Weir is always positive.

Formulas to find Critical Depth of Weir in Flow Over Notches and Weirs

fxCritical Depth due to Reduction in Area of Flow Section given Total HeadGo

Flow Over Notches and Weirs formulas that make use of Critical Depth of Weir

fxTotal Head above Weir CrestGo

fxVelocity of Flow given HeadGo

fxDischarge over Broad Crested WeirGo

fxLength of Crest given Discharge over WeirGo

fxTotal Head given Discharge over Weir CrestGo

fxActual Discharge over Broad Crested WeirGo

fxLength of Crest given Actual Discharge over Broad Crested WeirGo

fxCoefficient of Discharge given Actual Discharge over Broad Crested WeirGo

fxTotal Head for Actual Discharge over Broad Crested WeirGo

List of variables in Flow Over Notches and Weirs formulas

fx Total Head Go

fx Velocity of Fluid for Weir Go

fx Acceleration due to Gravity Go

FAQ

What is the Critical Depth of Weir?

The Critical Depth of Weir is defined as the depth of flow where energy is at a minimum for a particular discharge. Critical Depth of Weir is usually measured using the Meter for Length. Note that the value of Critical Depth of Weir is always positive.

Can the Critical Depth of Weir be negative?

No, the Critical Depth of Weir, measured in Length cannot be negative.

What unit is used to measure Critical Depth of Weir?

Critical Depth of Weir is usually measured using the Meter[m] for Length. Millimeter[m], Kilometer[m], Decimeter[m] are the few other units in which Critical Depth of Weir can be measured.

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