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SALUTAR anaerobic filter Circular weir Circular channel - normal flow Atmospheric pressure given altitude Air specific mass Dynamic viscosity of atmospheric air

Circular channel - critical depth

Input data

Incoming flow

Diameter

Manning coefficient

Output data

Critical depth

Critical slope

Description

Calculates the critical depth in circular channels.

Failed to load imageCritical depth

Calculation Methods

1. Critical depth

Parameter	Default Units	Description
Incoming flow	l/s	Volume of water entering the channel
Diameter	mm	Diameter of the circular channel
Manning coefficient	-	Roughness factor affecting flow

Output Data

Parameter	Default Units	Description
Critical depth	m	Depth of critical flow
Critical slope	-	Critical slope required for flow
Flow	m³/s	Calculated flow in the channel

Description

Calculates the critical depth in circular channels.

Failed to load imageCritical depth

Calculation Methods

1. Critical depth

Parameter	Default Units	Description
Incoming flow	l/s	Volume of water entering the channel
Diameter	mm	Diameter of the circular channel
Manning coefficient	-	Roughness factor affecting flow

Output Data

Parameter	Default Units	Description
Critical depth	m	Depth of critical flow
Critical slope	-	Critical slope required for flow
Flow	m³/s	Calculated flow in the channel

References

SILVESTRE, P. Hidráulica geral. Rio de Janeiro, LTC, 1979.