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Calculation
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Calculations
Recommendations
Dynamic viscosity of atmospheric air
Air specific mass
Circular weir
Foot valve
View all calculations
Trapezoidal weir
Calculate head
Calculate flow
Calculate head
Calculate flow
Input data
Flow
m³/s
m³/h
m³/d
L/s
L/h
L/d
gpm
gpd
gph
MGD
cfm
cfs
bpd
Length (b)
m
mm
cm
km
ft
in
mi
µm
Output data
Flow
m³/s
m³/h
m³/d
L/s
L/h
L/d
gpm
gpd
gph
MGD
cfm
cfs
bpd
Head (h)
m
mm
cm
km
ft
in
mi
µm
Input data
Length (b)
m
mm
cm
km
ft
in
mi
µm
Output data
Description
Design and rate trapezoidal weirs.
Perfil hidrogeológico
References
AZEVEDO NETTO, J. M. de; FERNANDEZ Y FERNANDEZ, Miguel. Manual de hidráulica, 9.ed. São Paulo: Blucher, 2015.